Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (22 commits)
  PCI Hotplug: move pci_hotplug.h to include/linux/
  change pci hotplug subsystem maintainer to Kristen
  PCI: optionally sort device lists breadth-first
  cpcihp_generic: prevent loading without "bridge" parameter
  pci: Additional search functions
  PCI: quirks: switch quirks code offender to use pci_get API
  PCI: Update MSI-HOWTO.txt according to pci_msi_supported()
  PCI: Improve pci_msi_supported() comments
  PCI hotplug: ioremap balanced with iounmap
  shpchp: remove unnecessary cmd_busy member from struct controller
  shpchp: fix command completion check
  pci: Stamp out pci_find_* usage in fakephp
  PCI: fix pcie_portdrv_restore_config undefined without CONFIG_PM error
  Fix DMA resource allocation in ACPIPnP
  PCI: Turn pci_fixup_video into generic for embedded VGA
  PCI: add ICH7/8 ACPI/GPIO io resource quirks
  PCI: pcie-check-and-return-bus_register-errors fix
  PCI: VIA IRQ quirk behaviour change
  pciehp: Remove unnecessary check in pciehp_ctrl.c
  pciehp - add missing locking
  ...

36 files changed, 421 insertions, 372 deletions

diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 51cb9f817c2..270a33cc08f 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -29,10 +29,10 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <acpi/acpi.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/actypes.h>
-#include "pci_hotplug.h"
 
 #define MY_NAME	"acpi_pcihp"
 
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 7fff07e877c..59c5b242d86 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -38,7 +38,7 @@
 #include <linux/acpi.h>
 #include <linux/kobject.h>	/* for KOBJ_NAME_LEN */
 #include <linux/mutex.h>
-#include "pci_hotplug.h"
+#include <linux/pci_hotplug.h>
 
 #define dbg(format, arg...)					\
 	do {							\
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index e2fef60c2d0..c57d9d5ce84 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -37,10 +37,10 @@
 
 #include <linux/kernel.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
-#include "pci_hotplug.h"
 #include "acpiphp.h"
 
 #define MY_NAME	"acpiphp"
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 83e8e4412de..c44311ac2fd 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -45,11 +45,11 @@
 
 #include <linux/kernel.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/smp_lock.h>
 #include <linux/mutex.h>
 
 #include "../pci.h"
-#include "pci_hotplug.h"
 #include "acpiphp.h"
 
 static LIST_HEAD(bridge_list);
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index d0a07d9ab30..bd40aee10e1 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -35,7 +35,6 @@
 #include <linux/moduleparam.h>
 
 #include "acpiphp.h"
-#include "pci_hotplug.h"
 
 #define DRIVER_VERSION	"1.0.1"
 #define DRIVER_AUTHOR	"Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>"
diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c
index d06ab404513..684551559d4 100644
--- a/drivers/pci/hotplug/cpci_hotplug_core.c
+++ b/drivers/pci/hotplug/cpci_hotplug_core.c
@@ -29,12 +29,12 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/smp_lock.h>
 #include <asm/atomic.h>
 #include <linux/delay.h>
-#include "pci_hotplug.h"
 #include "cpci_hotplug.h"
 
 #define DRIVER_AUTHOR	"Scott Murray <scottm@somanetworks.com>"
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index 4afcaffd031..7b1beaad275 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -26,9 +26,9 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/proc_fs.h>
 #include "../pci.h"
-#include "pci_hotplug.h"
 #include "cpci_hotplug.h"
 
 #define MY_NAME	"cpci_hotplug"
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index e847f0d6c7f..f3852a6b74e 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -84,7 +84,7 @@ static int __init validate_parameters(void)
 
 	if(!bridge) {
 		info("not configured, disabling.");
-		return 1;
+		return -EINVAL;
 	}
 	str = bridge;
 	if(!*str)
@@ -147,7 +147,7 @@ static int __init cpcihp_generic_init(void)
 
 	info(DRIVER_DESC " version: " DRIVER_VERSION);
 	status = validate_parameters();
-	if(status != 0)
+	if (status)
 		return status;
 
 	r = request_region(port, 1, "#ENUM hotswap signal register");
diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h
index ea040c32f47..298ad7f3f4f 100644
--- a/drivers/pci/hotplug/cpqphp.h
+++ b/drivers/pci/hotplug/cpqphp.h
@@ -28,7 +28,6 @@
 #ifndef _CPQPHP_H
 #define _CPQPHP_H
 
-#include "pci_hotplug.h"
 #include <linux/interrupt.h>
 #include <asm/io.h>		/* for read? and write? functions */
 #include <linux/delay.h>	/* for delays */
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 1fc259913b6..5617cfdadc5 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -37,6 +37,7 @@
 #include <linux/slab.h>
 #include <linux/workqueue.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index 3ec2ad7db49..79ff6b4de3a 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -36,6 +36,7 @@
 #include <linux/wait.h>
 #include <linux/smp_lock.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include "cpqphp.h"
 
 static u32 configure_new_device(struct controller* ctrl, struct pci_func *func,
diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
index cf087891753..298a6cfd840 100644
--- a/drivers/pci/hotplug/cpqphp_nvram.c
+++ b/drivers/pci/hotplug/cpqphp_nvram.c
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 #include <linux/workqueue.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/init.h>
 #include <asm/uaccess.h>
 #include "cpqphp.h"
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index 0d9688952f4..fc7c74d7259 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -33,6 +33,7 @@
 #include <linux/workqueue.h>
 #include <linux/proc_fs.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include "../pci.h"
 #include "cpqphp.h"
 #include "cpqphp_nvram.h"
diff --git a/drivers/pci/hotplug/cpqphp_sysfs.c b/drivers/pci/hotplug/cpqphp_sysfs.c
index 5bab666cd67..634f74d919d 100644
--- a/drivers/pci/hotplug/cpqphp_sysfs.c
+++ b/drivers/pci/hotplug/cpqphp_sysfs.c
@@ -32,6 +32,7 @@
 #include <linux/proc_fs.h>
 #include <linux/workqueue.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/debugfs.h>
 #include "cpqphp.h"
 
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
index 05a4f0f9018..e27907c91d9 100644
--- a/drivers/pci/hotplug/fakephp.c
+++ b/drivers/pci/hotplug/fakephp.c
@@ -35,10 +35,10 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/init.h>
 #include <linux/string.h>
 #include <linux/slab.h>
-#include "pci_hotplug.h"
 #include "../pci.h"
 
 #if !defined(MODULE)
@@ -181,7 +181,9 @@ static void pci_rescan_slot(struct pci_dev *temp)
 
 	if (!pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type)) {
 		temp->hdr_type = hdr_type & 0x7f;
-		if (!pci_find_slot(bus->number, temp->devfn)) {
+		if ((dev = pci_get_slot(bus, temp->devfn)) != NULL)
+			pci_dev_put(dev);
+		else {
 			dev = pci_scan_single_device(bus, temp->devfn);
 			if (dev) {
 				dbg("New device on %s function %x:%x\n",
@@ -205,7 +207,9 @@ static void pci_rescan_slot(struct pci_dev *temp)
 				continue;
 			temp->hdr_type = hdr_type & 0x7f;
 
-			if (!pci_find_slot(bus->number, temp->devfn)) {
+			if ((dev = pci_get_slot(bus, temp->devfn)) != NULL)
+				pci_dev_put(dev);
+			else {
 				dev = pci_scan_single_device(bus, temp->devfn);
 				if (dev) {
 					dbg("New device on %s function %x:%x\n",
@@ -305,7 +309,7 @@ static int disable_slot(struct hotplug_slot *slot)
 	/* search for subfunctions and disable them first */
 	if (!(dslot->dev->devfn & 7)) {
 		for (func = 1; func < 8; func++) {
-			dev = pci_find_slot(dslot->dev->bus->number,
+			dev = pci_get_slot(dslot->dev->bus,
 					dslot->dev->devfn + func);
 			if (dev) {
 				hslot = get_slot_from_dev(dev);
@@ -315,6 +319,7 @@ static int disable_slot(struct hotplug_slot *slot)
 					err("Hotplug slot not found for subfunction of PCI device\n");
 					return -ENODEV;
 				}
+				pci_dev_put(dev);
 			} else
 				dbg("No device in slot found\n");
 		}
diff --git a/drivers/pci/hotplug/ibmphp.h b/drivers/pci/hotplug/ibmphp.h
index dba6d8ca9bd..612d9630150 100644
--- a/drivers/pci/hotplug/ibmphp.h
+++ b/drivers/pci/hotplug/ibmphp.h
@@ -30,7 +30,7 @@
  *
  */
 
-#include "pci_hotplug.h"
+#include <linux/pci_hotplug.h>
 
 extern int ibmphp_debug;
 
diff --git a/drivers/pci/hotplug/pci_hotplug.h b/drivers/pci/hotplug/pci_hotplug.h
deleted file mode 100644
index 772523dc386..00000000000
--- a/drivers/pci/hotplug/pci_hotplug.h
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- * PCI HotPlug Core Functions
- *
- * Copyright (C) 1995,2001 Compaq Computer Corporation
- * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
- * Copyright (C) 2001 IBM Corp.
- *
- * All rights reserved.
- *
- * 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, GOOD TITLE or
- * NON INFRINGEMENT.  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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <greg@kroah.com>
- *
- */
-#ifndef _PCI_HOTPLUG_H
-#define _PCI_HOTPLUG_H
-
-
-/* These values come from the PCI Hotplug Spec */
-enum pci_bus_speed {
-	PCI_SPEED_33MHz			= 0x00,
-	PCI_SPEED_66MHz			= 0x01,
-	PCI_SPEED_66MHz_PCIX		= 0x02,
-	PCI_SPEED_100MHz_PCIX		= 0x03,
-	PCI_SPEED_133MHz_PCIX		= 0x04,
-	PCI_SPEED_66MHz_PCIX_ECC	= 0x05,
-	PCI_SPEED_100MHz_PCIX_ECC	= 0x06,
-	PCI_SPEED_133MHz_PCIX_ECC	= 0x07,
-	PCI_SPEED_66MHz_PCIX_266	= 0x09,
-	PCI_SPEED_100MHz_PCIX_266	= 0x0a,
-	PCI_SPEED_133MHz_PCIX_266	= 0x0b,
-	PCI_SPEED_66MHz_PCIX_533	= 0x11,
-	PCI_SPEED_100MHz_PCIX_533	= 0x12,
-	PCI_SPEED_133MHz_PCIX_533	= 0x13,
-	PCI_SPEED_UNKNOWN		= 0xff,
-};
-
-/* These values come from the PCI Express Spec */
-enum pcie_link_width {
-	PCIE_LNK_WIDTH_RESRV	= 0x00,
-	PCIE_LNK_X1		= 0x01,
-	PCIE_LNK_X2		= 0x02,
-	PCIE_LNK_X4		= 0x04,
-	PCIE_LNK_X8		= 0x08,
-	PCIE_LNK_X12		= 0x0C,
-	PCIE_LNK_X16		= 0x10,
-	PCIE_LNK_X32		= 0x20,
-	PCIE_LNK_WIDTH_UNKNOWN  = 0xFF,
-};
-
-enum pcie_link_speed {
-	PCIE_2PT5GB		= 0x14,
-	PCIE_LNK_SPEED_UNKNOWN	= 0xFF,
-};
-
-struct hotplug_slot;
-struct hotplug_slot_attribute {
-	struct attribute attr;
-	ssize_t (*show)(struct hotplug_slot *, char *);
-	ssize_t (*store)(struct hotplug_slot *, const char *, size_t);
-};
-#define to_hotplug_attr(n) container_of(n, struct hotplug_slot_attribute, attr);
-
-/**
- * struct hotplug_slot_ops -the callbacks that the hotplug pci core can use
- * @owner: The module owner of this structure
- * @enable_slot: Called when the user wants to enable a specific pci slot
- * @disable_slot: Called when the user wants to disable a specific pci slot
- * @set_attention_status: Called to set the specific slot's attention LED to
- * the specified value
- * @hardware_test: Called to run a specified hardware test on the specified
- * slot.
- * @get_power_status: Called to get the current power status of a slot.
- * 	If this field is NULL, the value passed in the struct hotplug_slot_info
- * 	will be used when this value is requested by a user.
- * @get_attention_status: Called to get the current attention status of a slot.
- *	If this field is NULL, the value passed in the struct hotplug_slot_info
- *	will be used when this value is requested by a user.
- * @get_latch_status: Called to get the current latch status of a slot.
- *	If this field is NULL, the value passed in the struct hotplug_slot_info
- *	will be used when this value is requested by a user.
- * @get_adapter_status: Called to get see if an adapter is present in the slot or not.
- *	If this field is NULL, the value passed in the struct hotplug_slot_info
- *	will be used when this value is requested by a user.
- * @get_address: Called to get pci address of a slot.
- *	If this field is NULL, the value passed in the struct hotplug_slot_info
- *	will be used when this value is requested by a user.
- * @get_max_bus_speed: Called to get the max bus speed for a slot.
- *	If this field is NULL, the value passed in the struct hotplug_slot_info
- *	will be used when this value is requested by a user.
- * @get_cur_bus_speed: Called to get the current bus speed for a slot.
- *	If this field is NULL, the value passed in the struct hotplug_slot_info
- *	will be used when this value is requested by a user.
- *
- * The table of function pointers that is passed to the hotplug pci core by a
- * hotplug pci driver.  These functions are called by the hotplug pci core when
- * the user wants to do something to a specific slot (query it for information,
- * set an LED, enable / disable power, etc.)
- */
-struct hotplug_slot_ops {
-	struct module *owner;
-	int (*enable_slot)		(struct hotplug_slot *slot);
-	int (*disable_slot)		(struct hotplug_slot *slot);
-	int (*set_attention_status)	(struct hotplug_slot *slot, u8 value);
-	int (*hardware_test)		(struct hotplug_slot *slot, u32 value);
-	int (*get_power_status)		(struct hotplug_slot *slot, u8 *value);
-	int (*get_attention_status)	(struct hotplug_slot *slot, u8 *value);
-	int (*get_latch_status)		(struct hotplug_slot *slot, u8 *value);
-	int (*get_adapter_status)	(struct hotplug_slot *slot, u8 *value);
-	int (*get_address)		(struct hotplug_slot *slot, u32 *value);
-	int (*get_max_bus_speed)	(struct hotplug_slot *slot, enum pci_bus_speed *value);
-	int (*get_cur_bus_speed)	(struct hotplug_slot *slot, enum pci_bus_speed *value);
-};
-
-/**
- * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
- * @power: if power is enabled or not (1/0)
- * @attention_status: if the attention light is enabled or not (1/0)
- * @latch_status: if the latch (if any) is open or closed (1/0)
- * @adapter_present: if there is a pci board present in the slot or not (1/0)
- * @address: (domain << 16 | bus << 8 | dev)
- *
- * Used to notify the hotplug pci core of the status of a specific slot.
- */
-struct hotplug_slot_info {
-	u8	power_status;
-	u8	attention_status;
-	u8	latch_status;
-	u8	adapter_status;
-	u32	address;
-	enum pci_bus_speed	max_bus_speed;
-	enum pci_bus_speed	cur_bus_speed;
-};
-
-/**
- * struct hotplug_slot - used to register a physical slot with the hotplug pci core
- * @name: the name of the slot being registered.  This string must
- * be unique amoung slots registered on this system.
- * @ops: pointer to the &struct hotplug_slot_ops to be used for this slot
- * @info: pointer to the &struct hotplug_slot_info for the initial values for
- * this slot.
- * @release: called during pci_hp_deregister to free memory allocated in a
- * hotplug_slot structure.
- * @private: used by the hotplug pci controller driver to store whatever it
- * needs.
- */
-struct hotplug_slot {
-	char				*name;
-	struct hotplug_slot_ops		*ops;
-	struct hotplug_slot_info	*info;
-	void (*release) (struct hotplug_slot *slot);
-	void				*private;
-
-	/* Variables below this are for use only by the hotplug pci core. */
-	struct list_head		slot_list;
-	struct kobject			kobj;
-};
-#define to_hotplug_slot(n) container_of(n, struct hotplug_slot, kobj)
-
-extern int pci_hp_register		(struct hotplug_slot *slot);
-extern int pci_hp_deregister		(struct hotplug_slot *slot);
-extern int __must_check pci_hp_change_slot_info	(struct hotplug_slot *slot,
-						 struct hotplug_slot_info *info);
-extern struct subsystem pci_hotplug_slots_subsys;
-
-/* PCI Setting Record (Type 0) */
-struct hpp_type0 {
-	u32 revision;
-	u8  cache_line_size;
-	u8  latency_timer;
-	u8  enable_serr;
-	u8  enable_perr;
-};
-
-/* PCI-X Setting Record (Type 1) */
-struct hpp_type1 {
-	u32 revision;
-	u8  max_mem_read;
-	u8  avg_max_split;
-	u16 tot_max_split;
-};
-
-/* PCI Express Setting Record (Type 2) */
-struct hpp_type2 {
-	u32 revision;
-	u32 unc_err_mask_and;
-	u32 unc_err_mask_or;
-	u32 unc_err_sever_and;
-	u32 unc_err_sever_or;
-	u32 cor_err_mask_and;
-	u32 cor_err_mask_or;
-	u32 adv_err_cap_and;
-	u32 adv_err_cap_or;
-	u16 pci_exp_devctl_and;
-	u16 pci_exp_devctl_or;
-	u16 pci_exp_lnkctl_and;
-	u16 pci_exp_lnkctl_or;
-	u32 sec_unc_err_sever_and;
-	u32 sec_unc_err_sever_or;
-	u32 sec_unc_err_mask_and;
-	u32 sec_unc_err_mask_or;
-};
-
-struct hotplug_params {
-	struct hpp_type0 *t0;		/* Type0: NULL if not available */
-	struct hpp_type1 *t1;		/* Type1: NULL if not available */
-	struct hpp_type2 *t2;		/* Type2: NULL if not available */
-	struct hpp_type0 type0_data;
-	struct hpp_type1 type1_data;
-	struct hpp_type2 type2_data;
-};
-
-#ifdef CONFIG_ACPI
-#include <acpi/acpi.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/actypes.h>
-extern acpi_status acpi_run_oshp(acpi_handle handle);
-extern acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
-				struct hotplug_params *hpp);
-int acpi_root_bridge(acpi_handle handle);
-#endif
-#endif
-
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index e2823ea9c4e..f5d632e7232 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -21,9 +21,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
- * Send feedback to <greg@kroah.com>
- *
- * Filesystem portion based on work done by Pat Mochel on ddfs/driverfs
+ * Send feedback to <kristen.c.accardi@intel.com>
  *
  */
 
@@ -32,6 +30,8 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/list.h>
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
 #include <linux/pagemap.h>
 #include <linux/slab.h>
 #include <linux/smp_lock.h>
@@ -39,11 +39,8 @@
 #include <linux/mount.h>
 #include <linux/namei.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <asm/uaccess.h>
-#include <linux/kobject.h>
-#include <linux/sysfs.h>
-#include "pci_hotplug.h"
-
 
 #define MY_NAME	"pci_hotplug"
 
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index eaea9d36a1b..4fb12fcda56 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -31,11 +31,11 @@
 
 #include <linux/types.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/delay.h>
 #include <linux/sched.h>		/* signal_pending() */
 #include <linux/pcieport_if.h>
 #include <linux/mutex.h>
-#include "pci_hotplug.h"
 
 #define MY_NAME	"pciehp"
 
@@ -92,6 +92,7 @@ struct php_ctlr_state_s {
 struct controller {
 	struct controller *next;
 	struct mutex crit_sect;		/* critical section mutex */
+	struct mutex ctrl_lock;		/* controller lock */
 	struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */
 	int num_slots;			/* Number of slots on ctlr */
 	int slot_num_inc;		/* 1 or -1 */
@@ -166,10 +167,10 @@ struct controller {
  * error Messages
  */
 #define msg_initialization_err	"Initialization failure, error=%d\n"
-#define msg_button_on		"PCI slot #%d - powering on due to button press.\n"
-#define msg_button_off		"PCI slot #%d - powering off due to button press.\n"
-#define msg_button_cancel	"PCI slot #%d - action canceled due to button press.\n"
-#define msg_button_ignore	"PCI slot #%d - button press ignored.  (action in progress...)\n"
+#define msg_button_on		"PCI slot #%s - powering on due to button press.\n"
+#define msg_button_off		"PCI slot #%s - powering off due to button press.\n"
+#define msg_button_cancel	"PCI slot #%s - action canceled due to button press.\n"
+#define msg_button_ignore	"PCI slot #%s - button press ignored.  (action in progress...)\n"
 
 /* controller functions */
 extern int	pciehp_event_start_thread	(void);
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index c67b7c3f1dd..f93e81e2d2c 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -448,7 +448,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	}
 
 	/* Wait for exclusive access to hardware */
-	mutex_lock(&ctrl->crit_sect);
+	mutex_lock(&ctrl->ctrl_lock);
 
 	t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */
 	
@@ -456,7 +456,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 		rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/
 		if (rc) {
 			/* Done with exclusive hardware access */
-			mutex_unlock(&ctrl->crit_sect);
+			mutex_unlock(&ctrl->ctrl_lock);
 			goto err_out_free_ctrl_slot;
 		} else
 			/* Wait for the command to complete */
@@ -464,7 +464,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	}
 
 	/* Done with exclusive hardware access */
-	mutex_unlock(&ctrl->crit_sect);
+	mutex_unlock(&ctrl->ctrl_lock);
 
 	return 0;
 
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 41290a106bd..372c63e35aa 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -43,6 +43,11 @@ static int event_finished;
 static unsigned long pushbutton_pending;	/* = 0 */
 static unsigned long surprise_rm_pending;	/* = 0 */
 
+static inline char *slot_name(struct slot *p_slot)
+{
+	return p_slot->hotplug_slot->name;
+}
+
 u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
 {
 	struct controller *ctrl = (struct controller *) inst_id;
@@ -68,7 +73,7 @@ u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
 	/*
 	 *  Button pressed - See if need to TAKE ACTION!!!
 	 */
-	info("Button pressed on Slot(%d)\n", ctrl->first_slot + hp_slot);
+	info("Button pressed on Slot(%s)\n", slot_name(p_slot));
 	taskInfo->event_type = INT_BUTTON_PRESS;
 
 	if ((p_slot->state == BLINKINGON_STATE)
@@ -78,7 +83,7 @@ u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
 		 * or hot-remove
 		 */
 		taskInfo->event_type = INT_BUTTON_CANCEL;
-		info("Button cancel on Slot(%d)\n", ctrl->first_slot + hp_slot);
+		info("Button cancel on Slot(%s)\n", slot_name(p_slot));
 	} else if ((p_slot->state == POWERON_STATE)
 		   || (p_slot->state == POWEROFF_STATE)) {
 		/* Ignore if the slot is on power-on or power-off state; this 
@@ -86,7 +91,7 @@ u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
 		 * hot-remove is undergoing
 		 */
 		taskInfo->event_type = INT_BUTTON_IGNORE;
-		info("Button ignore on Slot(%d)\n", ctrl->first_slot + hp_slot);
+		info("Button ignore on Slot(%s)\n", slot_name(p_slot));
 	}
 
 	if (rc)
@@ -122,13 +127,13 @@ u8 pciehp_handle_switch_change(u8 hp_slot, void *inst_id)
 		/*
 		 * Switch opened
 		 */
-		info("Latch open on Slot(%d)\n", ctrl->first_slot + hp_slot);
+		info("Latch open on Slot(%s)\n", slot_name(p_slot));
 		taskInfo->event_type = INT_SWITCH_OPEN;
 	} else {
 		/*
 		 *  Switch closed
 		 */
-		info("Latch close on Slot(%d)\n", ctrl->first_slot + hp_slot);
+		info("Latch close on Slot(%s)\n", slot_name(p_slot));
 		taskInfo->event_type = INT_SWITCH_CLOSE;
 	}
 
@@ -166,13 +171,13 @@ u8 pciehp_handle_presence_change(u8 hp_slot, void *inst_id)
 		/*
 		 * Card Present
 		 */
-		info("Card present on Slot(%d)\n", ctrl->first_slot + hp_slot);
+		info("Card present on Slot(%s)\n", slot_name(p_slot));
 		taskInfo->event_type = INT_PRESENCE_ON;
 	} else {
 		/*
 		 * Not Present
 		 */
-		info("Card not present on Slot(%d)\n", ctrl->first_slot + hp_slot);
+		info("Card not present on Slot(%s)\n", slot_name(p_slot));
 		taskInfo->event_type = INT_PRESENCE_OFF;
 	}
 
@@ -206,13 +211,13 @@ u8 pciehp_handle_power_fault(u8 hp_slot, void *inst_id)
 		/*
 		 * power fault Cleared
 		 */
-		info("Power fault cleared on Slot(%d)\n", ctrl->first_slot + hp_slot);
+		info("Power fault cleared on Slot(%s)\n", slot_name(p_slot));
 		taskInfo->event_type = INT_POWER_FAULT_CLEAR;
 	} else {
 		/*
 		 *   power fault
 		 */
-		info("Power fault on Slot(%d)\n", ctrl->first_slot + hp_slot);
+		info("Power fault on Slot(%s)\n", slot_name(p_slot));
 		taskInfo->event_type = INT_POWER_FAULT;
 		info("power fault bit %x set\n", hp_slot);
 	}
@@ -229,13 +234,13 @@ u8 pciehp_handle_power_fault(u8 hp_slot, void *inst_id)
 static void set_slot_off(struct controller *ctrl, struct slot * pslot)
 {
 	/* Wait for exclusive access to hardware */
-	mutex_lock(&ctrl->crit_sect);
+	mutex_lock(&ctrl->ctrl_lock);
 
 	/* turn off slot, turn on Amber LED, turn off Green LED if supported*/
 	if (POWER_CTRL(ctrl->ctrlcap)) {
 		if (pslot->hpc_ops->power_off_slot(pslot)) {   
 			err("%s: Issue of Slot Power Off command failed\n", __FUNCTION__);
-			mutex_unlock(&ctrl->crit_sect);
+			mutex_unlock(&ctrl->ctrl_lock);
 			return;
 		}
 		wait_for_ctrl_irq (ctrl);
@@ -249,14 +254,14 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
 	if (ATTN_LED(ctrl->ctrlcap)) { 
 		if (pslot->hpc_ops->set_attention_status(pslot, 1)) {   
 			err("%s: Issue of Set Attention Led command failed\n", __FUNCTION__);
-			mutex_unlock(&ctrl->crit_sect);
+			mutex_unlock(&ctrl->ctrl_lock);
 			return;
 		}
 		wait_for_ctrl_irq (ctrl);
 	}
 
 	/* Done with exclusive hardware access */
-	mutex_unlock(&ctrl->crit_sect);
+	mutex_unlock(&ctrl->ctrl_lock);
 }
 
 /**
@@ -279,13 +284,13 @@ static int board_added(struct slot *p_slot)
 			ctrl->slot_device_offset, hp_slot);
 
 	/* Wait for exclusive access to hardware */
-	mutex_lock(&ctrl->crit_sect);
+	mutex_lock(&ctrl->ctrl_lock);
 
 	if (POWER_CTRL(ctrl->ctrlcap)) {
 		/* Power on slot */
 		rc = p_slot->hpc_ops->power_on_slot(p_slot);
 		if (rc) {
-			mutex_unlock(&ctrl->crit_sect);
+			mutex_unlock(&ctrl->ctrl_lock);
 			return -1;
 		}
 
@@ -301,7 +306,7 @@ static int board_added(struct slot *p_slot)
 	}
 
 	/* Done with exclusive hardware access */
-	mutex_unlock(&ctrl->crit_sect);
+	mutex_unlock(&ctrl->ctrl_lock);
 
 	/* Wait for ~1 second */
 	wait_for_ctrl_irq (ctrl);
@@ -335,7 +340,7 @@ static int board_added(struct slot *p_slot)
 		pci_fixup_device(pci_fixup_final, ctrl->pci_dev);
 	if (PWR_LED(ctrl->ctrlcap)) {
 		/* Wait for exclusive access to hardware */
-  		mutex_lock(&ctrl->crit_sect);
+  		mutex_lock(&ctrl->ctrl_lock);
 
   		p_slot->hpc_ops->green_led_on(p_slot);
   
@@ -343,7 +348,7 @@ static int board_added(struct slot *p_slot)
   		wait_for_ctrl_irq (ctrl);
   	
   		/* Done with exclusive hardware access */
-  		mutex_unlock(&ctrl->crit_sect);
+  		mutex_unlock(&ctrl->ctrl_lock);
   	}
 	return 0;
 
@@ -375,14 +380,14 @@ static int remove_board(struct slot *p_slot)
 	dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot);
 
 	/* Wait for exclusive access to hardware */
-	mutex_lock(&ctrl->crit_sect);
+	mutex_lock(&ctrl->ctrl_lock);
 
 	if (POWER_CTRL(ctrl->ctrlcap)) {
 		/* power off slot */
 		rc = p_slot->hpc_ops->power_off_slot(p_slot);
 		if (rc) {
 			err("%s: Issue of Slot Disable command failed\n", __FUNCTION__);
-			mutex_unlock(&ctrl->crit_sect);
+			mutex_unlock(&ctrl->ctrl_lock);
 			return rc;
 		}
 		/* Wait for the command to complete */
@@ -398,7 +403,7 @@ static int remove_board(struct slot *p_slot)
 	}
 
 	/* Done with exclusive hardware access */
-	mutex_unlock(&ctrl->crit_sect);
+	mutex_unlock(&ctrl->ctrl_lock);
 
 	return 0;
 }
@@ -445,7 +450,7 @@ static void pciehp_pushbutton_thread(unsigned long slot)
 
 		if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) {
 			/* Wait for exclusive access to hardware */
-			mutex_lock(&p_slot->ctrl->crit_sect);
+			mutex_lock(&p_slot->ctrl->ctrl_lock);
 
 			p_slot->hpc_ops->green_led_off(p_slot);
 
@@ -453,7 +458,7 @@ static void pciehp_pushbutton_thread(unsigned long slot)
 			wait_for_ctrl_irq (p_slot->ctrl);
 
 			/* Done with exclusive hardware access */
-			mutex_unlock(&p_slot->ctrl->crit_sect);
+			mutex_unlock(&p_slot->ctrl->ctrl_lock);
 		}
 		p_slot->state = STATIC_STATE;
 	}
@@ -495,7 +500,7 @@ static void pciehp_surprise_rm_thread(unsigned long slot)
 
 		if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) {
 			/* Wait for exclusive access to hardware */
-			mutex_lock(&p_slot->ctrl->crit_sect);
+			mutex_lock(&p_slot->ctrl->ctrl_lock);
 
 			p_slot->hpc_ops->green_led_off(p_slot);
 
@@ -503,7 +508,7 @@ static void pciehp_surprise_rm_thread(unsigned long slot)
 			wait_for_ctrl_irq (p_slot->ctrl);
 
 			/* Done with exclusive hardware access */
-			mutex_unlock(&p_slot->ctrl->crit_sect);
+			mutex_unlock(&p_slot->ctrl->ctrl_lock);
 		}
 		p_slot->state = STATIC_STATE;
 	}
@@ -616,7 +621,7 @@ static void interrupt_event_handler(struct controller *ctrl)
 					switch (p_slot->state) {
 					case BLINKINGOFF_STATE:
 						/* Wait for exclusive access to hardware */
-						mutex_lock(&ctrl->crit_sect);
+						mutex_lock(&ctrl->ctrl_lock);
 						
 						if (PWR_LED(ctrl->ctrlcap)) {
 							p_slot->hpc_ops->green_led_on(p_slot);
@@ -630,11 +635,11 @@ static void interrupt_event_handler(struct controller *ctrl)
 							wait_for_ctrl_irq (ctrl);
 						}
 						/* Done with exclusive hardware access */
-						mutex_unlock(&ctrl->crit_sect);
+						mutex_unlock(&ctrl->ctrl_lock);
 						break;
 					case BLINKINGON_STATE:
 						/* Wait for exclusive access to hardware */
-						mutex_lock(&ctrl->crit_sect);
+						mutex_lock(&ctrl->ctrl_lock);
 
 						if (PWR_LED(ctrl->ctrlcap)) {
 							p_slot->hpc_ops->green_led_off(p_slot);
@@ -647,14 +652,14 @@ static void interrupt_event_handler(struct controller *ctrl)
 							wait_for_ctrl_irq (ctrl);
 						}
 						/* Done with exclusive hardware access */
-						mutex_unlock(&ctrl->crit_sect);
+						mutex_unlock(&ctrl->ctrl_lock);
 
 						break;
 					default:
 						warn("Not a valid state\n");
 						return;
 					}
-					info(msg_button_cancel, p_slot->number);
+					info(msg_button_cancel, slot_name(p_slot));
 					p_slot->state = STATIC_STATE;
 				}
 				/* ***********Button Pressed (No action on 1st press...) */
@@ -667,16 +672,16 @@ static void interrupt_event_handler(struct controller *ctrl)
 							/* slot is on */
 							dbg("slot is on\n");
 							p_slot->state = BLINKINGOFF_STATE;
-							info(msg_button_off, p_slot->number);
+							info(msg_button_off, slot_name(p_slot));
 						} else {
 							/* slot is off */
 							dbg("slot is off\n");
 							p_slot->state = BLINKINGON_STATE;
-							info(msg_button_on, p_slot->number);
+							info(msg_button_on, slot_name(p_slot));
 						}
 
 						/* Wait for exclusive access to hardware */
-						mutex_lock(&ctrl->crit_sect);
+						mutex_lock(&ctrl->ctrl_lock);
 
 						/* blink green LED and turn off amber */
 						if (PWR_LED(ctrl->ctrlcap)) {
@@ -693,7 +698,7 @@ static void interrupt_event_handler(struct controller *ctrl)
 						}
 
 						/* Done with exclusive hardware access */
-						mutex_unlock(&ctrl->crit_sect);
+						mutex_unlock(&ctrl->ctrl_lock);
 
 						init_timer(&p_slot->task_event);
 						p_slot->task_event.expires = jiffies + 5 * HZ;   /* 5 second delay */
@@ -708,7 +713,7 @@ static void interrupt_event_handler(struct controller *ctrl)
 					if (POWER_CTRL(ctrl->ctrlcap)) {
 						dbg("power fault\n");
 						/* Wait for exclusive access to hardware */
-						mutex_lock(&ctrl->crit_sect);
+						mutex_lock(&ctrl->ctrl_lock);
 
 						if (ATTN_LED(ctrl->ctrlcap)) {
 							p_slot->hpc_ops->set_attention_status(p_slot, 1);
@@ -721,7 +726,7 @@ static void interrupt_event_handler(struct controller *ctrl)
 						}
 
 						/* Done with exclusive hardware access */
-						mutex_unlock(&ctrl->crit_sect);
+						mutex_unlock(&ctrl->ctrl_lock);
 					}
 				}
 				/***********SURPRISE REMOVAL********************/
@@ -760,14 +765,16 @@ int pciehp_enable_slot(struct slot *p_slot)
 
 	rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
 	if (rc || !getstatus) {
-		info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number);
+		info("%s: no adapter on slot(%s)\n", __FUNCTION__,
+		     slot_name(p_slot));
 		mutex_unlock(&p_slot->ctrl->crit_sect);
 		return -ENODEV;
 	}
 	if (MRL_SENS(p_slot->ctrl->ctrlcap)) {	
 		rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
 		if (rc || getstatus) {
-			info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number);
+			info("%s: latch open on slot(%s)\n", __FUNCTION__,
+			     slot_name(p_slot));
 			mutex_unlock(&p_slot->ctrl->crit_sect);
 			return -ENODEV;
 		}
@@ -776,12 +783,12 @@ int pciehp_enable_slot(struct slot *p_slot)
 	if (POWER_CTRL(p_slot->ctrl->ctrlcap)) {	
 		rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
 		if (rc || getstatus) {
-			info("%s: already enabled on slot(%x)\n", __FUNCTION__, p_slot->number);
+			info("%s: already enabled on slot(%s)\n", __FUNCTION__,
+			     slot_name(p_slot));
 			mutex_unlock(&p_slot->ctrl->crit_sect);
 			return -EINVAL;
 		}
 	}
-	mutex_unlock(&p_slot->ctrl->crit_sect);
 
 	p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
 
@@ -790,9 +797,9 @@ int pciehp_enable_slot(struct slot *p_slot)
 		p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
 	}
 
-	if (p_slot)
-		update_slot_info(p_slot);
+	update_slot_info(p_slot);
 
+	mutex_unlock(&p_slot->ctrl->crit_sect);
 	return rc;
 }
 
@@ -811,7 +818,8 @@ int pciehp_disable_slot(struct slot *p_slot)
 	if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) {	
 		ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
 		if (ret || !getstatus) {
-			info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number);
+			info("%s: no adapter on slot(%s)\n", __FUNCTION__,
+			     slot_name(p_slot));
 			mutex_unlock(&p_slot->ctrl->crit_sect);
 			return -ENODEV;
 		}
@@ -820,7 +828,8 @@ int pciehp_disable_slot(struct slot *p_slot)
 	if (MRL_SENS(p_slot->ctrl->ctrlcap)) {	
 		ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
 		if (ret || getstatus) {
-			info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number);
+			info("%s: latch open on slot(%s)\n", __FUNCTION__,
+			     slot_name(p_slot));
 			mutex_unlock(&p_slot->ctrl->crit_sect);
 			return -ENODEV;
 		}
@@ -829,16 +838,17 @@ int pciehp_disable_slot(struct slot *p_slot)
 	if (POWER_CTRL(p_slot->ctrl->ctrlcap)) {	
 		ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
 		if (ret || !getstatus) {
-			info("%s: already disabled slot(%x)\n", __FUNCTION__, p_slot->number);
+			info("%s: already disabled slot(%s)\n", __FUNCTION__,
+			     slot_name(p_slot));
 			mutex_unlock(&p_slot->ctrl->crit_sect);
 			return -EINVAL;
 		}
 	}
 
-	mutex_unlock(&p_slot->ctrl->crit_sect);
-
 	ret = remove_board(p_slot);
 	update_slot_info(p_slot);
+
+	mutex_unlock(&p_slot->ctrl->crit_sect);
 	return ret;
 }
 
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 703a64a39fe..1c551c697c3 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -1402,6 +1402,8 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev)
 		pdev->subsystem_vendor, pdev->subsystem_device);
 
 	mutex_init(&ctrl->crit_sect);
+	mutex_init(&ctrl->ctrl_lock);
+
 	/* setup wait queue */
 	init_waitqueue_head(&ctrl->queue);
 
diff --git a/drivers/pci/hotplug/pcihp_skeleton.c b/drivers/pci/hotplug/pcihp_skeleton.c
index 2b9e10e3861..50bcd3fe61d 100644
--- a/drivers/pci/hotplug/pcihp_skeleton.c
+++ b/drivers/pci/hotplug/pcihp_skeleton.c
@@ -33,8 +33,8 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/init.h>
-#include "pci_hotplug.h"
 
 #define SLOT_NAME_SIZE	10
 struct slot {
diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c
index db69be85b45..6c5be3ff578 100644
--- a/drivers/pci/hotplug/rpadlpar_sysfs.c
+++ b/drivers/pci/hotplug/rpadlpar_sysfs.c
@@ -14,7 +14,7 @@
  */
 #include <linux/kobject.h>
 #include <linux/string.h>
-#include "pci_hotplug.h"
+#include <linux/pci_hotplug.h>
 #include "rpadlpar.h"
 
 #define DLPAR_KOBJ_NAME       "control"
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 7288a3eccfb..141486df235 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
@@ -36,7 +37,6 @@
 #include "../pci.h"		/* for pci_add_new_bus */
 				/* and pci_do_scan_bus */
 #include "rpaphp.h"
-#include "pci_hotplug.h"
 
 int debug;
 static struct semaphore rpaphp_sem;
diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c
index f31d83c2c63..b62ad31a973 100644
--- a/drivers/pci/hotplug/sgi_hotplug.c
+++ b/drivers/pci/hotplug/sgi_hotplug.c
@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/proc_fs.h>
 #include <linux/types.h>
 #include <linux/mutex.h>
@@ -29,7 +30,6 @@
 #include <asm/sn/types.h>
 
 #include "../pci.h"
-#include "pci_hotplug.h"
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("SGI (prarit@sgi.com, dickie@sgi.com, habeck@sgi.com)");
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index c7103ac5cd0..ea2087c3414 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -31,12 +31,11 @@
 
 #include <linux/types.h>
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <linux/delay.h>
 #include <linux/sched.h>	/* signal_pending(), struct timer_list */
 #include <linux/mutex.h>
 
-#include "pci_hotplug.h"
-
 #if !defined(MODULE)
 	#define MY_NAME	"shpchp"
 #else
@@ -103,7 +102,6 @@ struct controller {
 	u32 cap_offset;
 	unsigned long mmio_base;
 	unsigned long mmio_size;
-	volatile int cmd_busy;
 };
 
 
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index 4d8aee11913..83a5226ba9e 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -302,21 +302,51 @@ static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec)
 	add_timer(&php_ctlr->int_poll_timer);
 }
 
+static inline int is_ctrl_busy(struct controller *ctrl)
+{
+	u16 cmd_status = shpc_readw(ctrl, CMD_STATUS);
+	return cmd_status & 0x1;
+}
+
+/*
+ * Returns 1 if SHPC finishes executing a command within 1 sec,
+ * otherwise returns 0.
+ */
+static inline int shpc_poll_ctrl_busy(struct controller *ctrl)
+{
+	int i;
+
+	if (!is_ctrl_busy(ctrl))
+		return 1;
+
+	/* Check every 0.1 sec for a total of 1 sec */
+	for (i = 0; i < 10; i++) {
+		msleep(100);
+		if (!is_ctrl_busy(ctrl))
+			return 1;
+	}
+
+	return 0;
+}
+
 static inline int shpc_wait_cmd(struct controller *ctrl)
 {
 	int retval = 0;
-	unsigned int timeout_msec = shpchp_poll_mode ? 2000 : 1000;
-	unsigned long timeout = msecs_to_jiffies(timeout_msec);
-	int rc = wait_event_interruptible_timeout(ctrl->queue,
-						  !ctrl->cmd_busy, timeout);
-	if (!rc) {
+	unsigned long timeout = msecs_to_jiffies(1000);
+	int rc;
+
+	if (shpchp_poll_mode)
+		rc = shpc_poll_ctrl_busy(ctrl);
+	else
+		rc = wait_event_interruptible_timeout(ctrl->queue,
+						!is_ctrl_busy(ctrl), timeout);
+	if (!rc && is_ctrl_busy(ctrl)) {
 		retval = -EIO;
-		err("Command not completed in %d msec\n", timeout_msec);
+		err("Command not completed in 1000 msec\n");
 	} else if (rc < 0) {
 		retval = -EINTR;
 		info("Command was interrupted by a signal\n");
 	}
-	ctrl->cmd_busy = 0;
 
 	return retval;
 }
@@ -327,26 +357,15 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
 	u16 cmd_status;
 	int retval = 0;
 	u16 temp_word;
-	int i;
 
 	DBG_ENTER_ROUTINE 
 
 	mutex_lock(&slot->ctrl->cmd_lock);
 
-	for (i = 0; i < 10; i++) {
-		cmd_status = shpc_readw(ctrl, CMD_STATUS);
-		
-		if (!(cmd_status & 0x1))
-			break;
-		/*  Check every 0.1 sec for a total of 1 sec*/
-		msleep(100);
-	}
-
-	cmd_status = shpc_readw(ctrl, CMD_STATUS);
-	
-	if (cmd_status & 0x1) { 
+	if (!shpc_poll_ctrl_busy(ctrl)) {
 		/* After 1 sec and and the controller is still busy */
-		err("%s : Controller is still busy after 1 sec.\n", __FUNCTION__);
+		err("%s : Controller is still busy after 1 sec.\n",
+		    __FUNCTION__);
 		retval = -EBUSY;
 		goto out;
 	}
@@ -358,7 +377,6 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
 	/* To make sure the Controller Busy bit is 0 before we send out the
 	 * command. 
 	 */
-	slot->ctrl->cmd_busy = 1;
 	shpc_writew(ctrl, CMD, temp_word);
 
 	/*
@@ -908,7 +926,6 @@ static irqreturn_t shpc_isr(int irq, void *dev_id)
 		serr_int &= ~SERR_INTR_RSVDZ_MASK;
 		shpc_writel(ctrl, SERR_INTR_ENABLE, serr_int);
 
-		ctrl->cmd_busy = 0;
 		wake_up_interruptible(&ctrl->queue);
 	}
 
@@ -1101,7 +1118,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
 {
 	struct php_ctlr_state_s *php_ctlr, *p;
 	void *instance_id = ctrl;
-	int rc, num_slots = 0;
+	int rc = -1, num_slots = 0;
 	u8 hp_slot;
 	u32 shpc_base_offset;
 	u32 tempdword, slot_reg, slot_config;
@@ -1167,11 +1184,15 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
 	info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", pdev->vendor, pdev->device, pdev->subsystem_vendor, 
 		pdev->subsystem_device);
 	
-	if (pci_enable_device(pdev))
+	rc = pci_enable_device(pdev);
+	if (rc) {
+		err("%s: pci_enable_device failed\n", __FUNCTION__);
 		goto abort_free_ctlr;
+	}
 
 	if (!request_mem_region(ctrl->mmio_base, ctrl->mmio_size, MY_NAME)) {
 		err("%s: cannot reserve MMIO region\n", __FUNCTION__);
+		rc = -1;
 		goto abort_free_ctlr;
 	}
 
@@ -1180,6 +1201,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
 		err("%s: cannot remap MMIO region %lx @ %lx\n", __FUNCTION__,
 		    ctrl->mmio_size, ctrl->mmio_base);
 		release_mem_region(ctrl->mmio_base, ctrl->mmio_size);
+		rc = -1;
 		goto abort_free_ctlr;
 	}
 	dbg("%s: php_ctlr->creg %p\n", __FUNCTION__, php_ctlr->creg);
@@ -1282,8 +1304,10 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
 	 */
 	if (atomic_add_return(1, &shpchp_num_controllers) == 1) {
 		shpchp_wq = create_singlethread_workqueue("shpchpd");
-		if (!shpchp_wq)
-			return -ENOMEM;
+		if (!shpchp_wq) {
+			rc = -ENOMEM;
+			goto abort_free_ctlr;
+		}
 	}
 
 	/*
@@ -1313,8 +1337,10 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
 
 	/* We end up here for the many possible ways to fail this API.  */
 abort_free_ctlr:
+	if (php_ctlr->creg)
+		iounmap(php_ctlr->creg);
 	kfree(php_ctlr);
 abort:
 	DBG_LEAVE_ROUTINE
-	return -1;
+	return rc;
 }
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index f9fdc54473c..9fc9a34ef24 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -627,22 +627,24 @@ static int msix_capability_init(struct pci_dev *dev,
  * pci_msi_supported - check whether MSI may be enabled on device
  * @dev: pointer to the pci_dev data structure of MSI device function
  *
- * MSI must be globally enabled and supported by the device and its root
- * bus. But, the root bus is not easy to find since some architectures
- * have virtual busses on top of the PCI hierarchy (for instance the
- * hypertransport bus), while the actual bus where MSI must be supported
- * is below. So we test the MSI flag on all parent busses and assume
- * that no quirk will ever set the NO_MSI flag on a non-root bus.
+ * Look at global flags, the device itself, and its parent busses
+ * to return 0 if MSI are supported for the device.
  **/
 static
 int pci_msi_supported(struct pci_dev * dev)
 {
 	struct pci_bus *bus;
 
+	/* MSI must be globally enabled and supported by the device */
 	if (!pci_msi_enable || !dev || dev->no_msi)
 		return -EINVAL;
 
-	/* check MSI flags of all parent busses */
+	/* Any bridge which does NOT route MSI transactions from it's
+	 * secondary bus to it's primary bus must set NO_MSI flag on
+	 * the secondary pci_bus.
+	 * We expect only arch-specific PCI host bus controller driver
+	 * or quirks for specific PCI bridges to be setting NO_MSI.
+	 */
 	for (bus = dev->bus; bus; bus = bus->parent)
 		if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
 			return -EINVAL;
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 67fcd176bab..3656e0349dd 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -9,6 +9,8 @@
 #ifndef _PORTDRV_H_
 #define _PORTDRV_H_
 
+#include <linux/compiler.h>
+
 #if !defined(PCI_CAP_ID_PME)
 #define PCI_CAP_ID_PME			1
 #endif
@@ -39,7 +41,7 @@ extern int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state);
 extern int pcie_port_device_resume(struct pci_dev *dev);
 #endif
 extern void pcie_port_device_remove(struct pci_dev *dev);
-extern int pcie_port_bus_register(void);
+extern int __must_check pcie_port_bus_register(void);
 extern void pcie_port_bus_unregister(void);
 
 #endif /* _PORTDRV_H_ */
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index bd6615b4d40..b20a9b81dae 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -6,7 +6,6 @@
  * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
  */
 
-#include <linux/compiler.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/kernel.h>
@@ -401,7 +400,7 @@ void pcie_port_device_remove(struct pci_dev *dev)
 		pci_disable_msi(dev);
 }
 
-int __must_check pcie_port_bus_register(void)
+int pcie_port_bus_register(void)
 {
 	return bus_register(&pcie_port_bus_type);
 }
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 037690e08f5..b4da7954611 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -37,7 +37,6 @@ static int pcie_portdrv_save_config(struct pci_dev *dev)
 	return pci_save_state(dev);
 }
 
-#ifdef CONFIG_PM
 static int pcie_portdrv_restore_config(struct pci_dev *dev)
 {
 	int retval;
@@ -50,6 +49,7 @@ static int pcie_portdrv_restore_config(struct pci_dev *dev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 static int pcie_portdrv_suspend(struct pci_dev *dev, pm_message_t state)
 {
 	int ret = pcie_port_device_suspend(dev, state);
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index a3b0a5eb505..e159d660449 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1067,3 +1067,95 @@ EXPORT_SYMBOL(pci_scan_bridge);
 EXPORT_SYMBOL(pci_scan_single_device);
 EXPORT_SYMBOL_GPL(pci_scan_child_bus);
 #endif
+
+static int __init pci_sort_bf_cmp(const struct pci_dev *a, const struct pci_dev *b)
+{
+	if      (pci_domain_nr(a->bus) < pci_domain_nr(b->bus)) return -1;
+	else if (pci_domain_nr(a->bus) > pci_domain_nr(b->bus)) return  1;
+
+	if      (a->bus->number < b->bus->number) return -1;
+	else if (a->bus->number > b->bus->number) return  1;
+
+	if      (a->devfn < b->devfn) return -1;
+	else if (a->devfn > b->devfn) return  1;
+
+	return 0;
+}
+
+/*
+ * Yes, this forcably breaks the klist abstraction temporarily.  It
+ * just wants to sort the klist, not change reference counts and
+ * take/drop locks rapidly in the process.  It does all this while
+ * holding the lock for the list, so objects can't otherwise be
+ * added/removed while we're swizzling.
+ */
+static void __init pci_insertion_sort_klist(struct pci_dev *a, struct list_head *list)
+{
+	struct list_head *pos;
+	struct klist_node *n;
+	struct device *dev;
+	struct pci_dev *b;
+
+	list_for_each(pos, list) {
+		n = container_of(pos, struct klist_node, n_node);
+		dev = container_of(n, struct device, knode_bus);
+		b = to_pci_dev(dev);
+		if (pci_sort_bf_cmp(a, b) <= 0) {
+			list_move_tail(&a->dev.knode_bus.n_node, &b->dev.knode_bus.n_node);
+			return;
+		}
+	}
+	list_move_tail(&a->dev.knode_bus.n_node, list);
+}
+
+static void __init pci_sort_breadthfirst_klist(void)
+{
+	LIST_HEAD(sorted_devices);
+	struct list_head *pos, *tmp;
+	struct klist_node *n;
+	struct device *dev;
+	struct pci_dev *pdev;
+
+	spin_lock(&pci_bus_type.klist_devices.k_lock);
+	list_for_each_safe(pos, tmp, &pci_bus_type.klist_devices.k_list) {
+		n = container_of(pos, struct klist_node, n_node);
+		dev = container_of(n, struct device, knode_bus);
+		pdev = to_pci_dev(dev);
+		pci_insertion_sort_klist(pdev, &sorted_devices);
+	}
+	list_splice(&sorted_devices, &pci_bus_type.klist_devices.k_list);
+	spin_unlock(&pci_bus_type.klist_devices.k_lock);
+}
+
+static void __init pci_insertion_sort_devices(struct pci_dev *a, struct list_head *list)
+{
+	struct pci_dev *b;
+
+	list_for_each_entry(b, list, global_list) {
+		if (pci_sort_bf_cmp(a, b) <= 0) {
+			list_move_tail(&a->global_list, &b->global_list);
+			return;
+		}
+	}
+	list_move_tail(&a->global_list, list);
+}
+
+static void __init pci_sort_breadthfirst_devices(void)
+{
+	LIST_HEAD(sorted_devices);
+	struct pci_dev *dev, *tmp;
+
+	down_write(&pci_bus_sem);
+	list_for_each_entry_safe(dev, tmp, &pci_devices, global_list) {
+		pci_insertion_sort_devices(dev, &sorted_devices);
+	}
+	list_splice(&sorted_devices, &pci_devices);
+	up_write(&pci_bus_sem);
+}
+
+void __init pci_sort_breadthfirst(void)
+{
+	pci_sort_breadthfirst_devices();
+	pci_sort_breadthfirst_klist();
+}
+
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 23b599d6a9d..e8a7f1b1b2b 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -453,6 +453,12 @@ static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi );
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi );
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi );
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi );
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi );
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi );
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi );
 
 /*
  * VIA ACPI: One IO region pointed to by longword at
@@ -648,11 +654,43 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686_4,	quirk_vi
  * Some of the on-chip devices are actually '586 devices' so they are
  * listed here.
  */
+
+static int via_irq_fixup_needed = -1;
+
+/*
+ * As some VIA hardware is available in PCI-card form, we need to restrict
+ * this quirk to VIA PCI hardware built onto VIA-based motherboards only.
+ * We try to locate a VIA southbridge before deciding whether the quirk
+ * should be applied.
+ */
+static const struct pci_device_id via_irq_fixup_tbl[] = {
+	{
+		.vendor 	= PCI_VENDOR_ID_VIA,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.class		= PCI_CLASS_BRIDGE_ISA << 8,
+		.class_mask	= 0xffff00,
+	},
+	{ 0, },
+};
+
 static void quirk_via_irq(struct pci_dev *dev)
 {
 	u8 irq, new_irq;
 
-	new_irq = dev->irq & 0xf;
+	if (via_irq_fixup_needed == -1)
+		via_irq_fixup_needed = pci_dev_present(via_irq_fixup_tbl);
+
+	if (!via_irq_fixup_needed)
+		return;
+
+	new_irq = dev->irq;
+
+	/* Don't quirk interrupts outside the legacy IRQ range */
+	if (!new_irq || new_irq > 15)
+		return;
+
 	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
 	if (new_irq != irq) {
 		printk(KERN_INFO "PCI: VIA IRQ fixup for %s, from %d to %d\n",
@@ -661,14 +699,7 @@ static void quirk_via_irq(struct pci_dev *dev)
 		pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
 	}
 }
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_via_irq);
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, quirk_via_irq);
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2, quirk_via_irq);
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_irq);
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, quirk_via_irq);
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_irq);
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_irq);
-DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, quirk_via_irq);
+DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irq);
 
 /*
  * VIA VT82C598 has its device ID settable and many BIOSes
@@ -1588,6 +1619,51 @@ static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
 
+/*
+ * Fixup to mark boot BIOS video selected by BIOS before it changes
+ *
+ * From information provided by "Jon Smirl" <jonsmirl@gmail.com>
+ *
+ * The standard boot ROM sequence for an x86 machine uses the BIOS
+ * to select an initial video card for boot display. This boot video
+ * card will have it's BIOS copied to C0000 in system RAM.
+ * IORESOURCE_ROM_SHADOW is used to associate the boot video
+ * card with this copy. On laptops this copy has to be used since
+ * the main ROM may be compressed or combined with another image.
+ * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW
+ * is marked here since the boot video device will be the only enabled
+ * video device at this point.
+ */
+
+static void __devinit fixup_video(struct pci_dev *pdev)
+{
+	struct pci_dev *bridge;
+	struct pci_bus *bus;
+	u16 config;
+
+	if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+		return;
+
+	/* Is VGA routed to us? */
+	bus = pdev->bus;
+	while (bus) {
+		bridge = bus->self;
+		if (bridge) {
+			pci_read_config_word(bridge, PCI_BRIDGE_CONTROL,
+						&config);
+			if (!(config & PCI_BRIDGE_CTL_VGA))
+				return;
+		}
+		bus = bus->parent;
+	}
+	pci_read_config_word(pdev, PCI_COMMAND, &config);
+	if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
+		pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW;
+		printk(KERN_DEBUG "Boot video device is %s\n", pci_name(pdev));
+	}
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, fixup_video);
+
 
 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
 {
@@ -1764,7 +1840,7 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
 	/* check HT MSI cap on this chipset and the root one.
 	 * a single one having MSI is enough to be sure that MSI are supported.
 	 */
-	pdev = pci_find_slot(dev->bus->number, 0);
+	pdev = pci_get_slot(dev->bus, 0);
 	if (dev->subordinate && !msi_ht_cap_enabled(dev)
 	    && !msi_ht_cap_enabled(pdev)) {
 		printk(KERN_WARNING "PCI: MSI quirk detected. "
@@ -1772,6 +1848,7 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
 		       pci_name(dev));
 		dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
 	}
+	pci_dev_put(pdev);
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
 			quirk_nvidia_ck804_msi_ht_cap);
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index f5ee7ce16fa..43e4a49f2cc 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -71,7 +71,10 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size)
 	void __iomem *image;
 	int last_image;
 
-	/* IORESOURCE_ROM_SHADOW only set on x86 */
+	/*
+	 * IORESOURCE_ROM_SHADOW set if the VGA enable bit of the Bridge Control
+	 * register is set for embedded VGA.
+	 */
 	if (res->flags & IORESOURCE_ROM_SHADOW) {
 		/* primary video rom always starts here */
 		start = (loff_t)0xC0000;
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index d529462d1b5..2f13eba5d5a 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -140,6 +140,31 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
 }
 
 /**
+ * pci_get_bus_and_slot - locate PCI device from a given PCI slot
+ * @bus: number of PCI bus on which desired PCI device resides
+ * @devfn: encodes number of PCI slot in which the desired PCI
+ * device resides and the logical device number within that slot
+ * in case of multi-function devices.
+ *
+ * Given a PCI bus and slot/function number, the desired PCI device
+ * is located in system global list of PCI devices.  If the device
+ * is found, a pointer to its data structure is returned.  If no
+ * device is found, %NULL is returned. The returned device has its
+ * reference count bumped by one.
+ */
+
+struct pci_dev * pci_get_bus_and_slot(unsigned int bus, unsigned int devfn)
+{
+	struct pci_dev *dev = NULL;
+
+	while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
+		if (dev->bus->number == bus && dev->devfn == devfn)
+			return dev;
+	}
+	return NULL;
+}
+
+/**
  * pci_find_subsys - begin or continue searching for a PCI device by vendor/subvendor/device/subdevice id
  * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
  * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
@@ -274,6 +299,45 @@ pci_get_device(unsigned int vendor, unsigned int device, struct pci_dev *from)
 	return pci_get_subsys(vendor, device, PCI_ANY_ID, PCI_ANY_ID, from);
 }
 
+/**
+ * pci_get_device_reverse - begin or continue searching for a PCI device by vendor/device id
+ * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
+ * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
+ * @from: Previous PCI device found in search, or %NULL for new search.
+ *
+ * Iterates through the list of known PCI devices in the reverse order of
+ * pci_get_device.
+ * If a PCI device is found with a matching @vendor and @device, the reference
+ * count to the  device is incremented and a pointer to its device structure
+ * is returned Otherwise, %NULL is returned.  A new search is initiated by
+ * passing %NULL as the @from argument.  Otherwise if @from is not %NULL,
+ * searches continue from next device on the global list.  The reference
+ * count for @from is always decremented if it is not %NULL.
+ */
+struct pci_dev *
+pci_get_device_reverse(unsigned int vendor, unsigned int device, struct pci_dev *from)
+{
+	struct list_head *n;
+	struct pci_dev *dev;
+
+	WARN_ON(in_interrupt());
+	down_read(&pci_bus_sem);
+	n = from ? from->global_list.prev : pci_devices.prev;
+
+	while (n && (n != &pci_devices)) {
+		dev = pci_dev_g(n);
+		if ((vendor == PCI_ANY_ID || dev->vendor == vendor) &&
+		    (device == PCI_ANY_ID || dev->device == device))
+			goto exit;
+		n = n->prev;
+	}
+	dev = NULL;
+exit:
+	dev = pci_dev_get(dev);
+	up_read(&pci_bus_sem);
+	pci_dev_put(from);
+	return dev;
+}
 
 /**
  * pci_find_device_reverse - begin or continue searching for a PCI device by vendor/device id
@@ -382,12 +446,16 @@ exit:
 }
 EXPORT_SYMBOL(pci_dev_present);
 
-EXPORT_SYMBOL(pci_find_bus);
-EXPORT_SYMBOL(pci_find_next_bus);
 EXPORT_SYMBOL(pci_find_device);
 EXPORT_SYMBOL(pci_find_device_reverse);
 EXPORT_SYMBOL(pci_find_slot);
+/* For boot time work */
+EXPORT_SYMBOL(pci_find_bus);
+EXPORT_SYMBOL(pci_find_next_bus);
+/* For everyone */
 EXPORT_SYMBOL(pci_get_device);
+EXPORT_SYMBOL(pci_get_device_reverse);
 EXPORT_SYMBOL(pci_get_subsys);
 EXPORT_SYMBOL(pci_get_slot);
+EXPORT_SYMBOL(pci_get_bus_and_slot);
 EXPORT_SYMBOL(pci_get_class);