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

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (41 commits)
  Revert "PCI: remove duplicate device id from ata_piix"
  msi: Make MSI useable more architectures
  msi: Kill the msi_desc array.
  msi: Remove attach_msi_entry.
  msi: Fix msi_remove_pci_irq_vectors.
  msi: Remove msi_lock.
  msi: Kill msi_lookup_irq
  MSI: Combine pci_(save|restore)_msi/msix_state
  MSI: Remove pci_scan_msi_device()
  MSI: Replace pci_msi_quirk with calls to pci_no_msi()
  PCI: remove duplicate device id from ipr
  PCI: remove duplicate device id from ata_piix
  PCI: power management: remove noise on non-manageable hw
  PCI: cleanup MSI code
  PCI: make isa_bridge Alpha-only
  PCI: remove quirk_sis_96x_compatible()
  PCI: Speed up the Intel SMBus unhiding quirk
  PCI Quirk: 1k I/O space IOBL_ADR fix on P64H2
  shpchp: delete trailing whitespace
  shpchp: remove DBG_XXX_ROUTINE
  ...

arch/alpha/kernel/pci.c

@@ -575,3 +575,7 @@ void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 
 EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
+
+/* FIXME: Some boxes have multiple ISA bridges! */
+struct pci_dev *isa_bridge;
+EXPORT_SYMBOL(isa_bridge);

arch/i386/kernel/io_apic.c

@@ -2606,25 +2606,32 @@ static struct irq_chip msi_chip = {
 	.retrigger	= ioapic_retrigger_irq,
 };
 
-int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev)
+int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
 {
 	struct msi_msg msg;
-	int ret;
+	int irq, ret;
+	irq = create_irq();
+	if (irq < 0)
+		return irq;
+
+	set_irq_msi(irq, desc);
 	ret = msi_compose_msg(dev, irq, &msg);
-	if (ret < 0)
+	if (ret < 0) {
+		destroy_irq(irq);
 		return ret;
+	}
 
 	write_msi_msg(irq, &msg);
 
 	set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq,
 				      "edge");
 
-	return 0;
+	return irq;
 }
 
 void arch_teardown_msi_irq(unsigned int irq)
 {
-	return;
+	destroy_irq(irq);
 }
 
 #endif /* CONFIG_PCI_MSI */

arch/ia64/kernel/msi_ia64.c

@@ -64,12 +64,17 @@ static void ia64_set_msi_irq_affinity(unsigned int irq, cpumask_t cpu_mask)
 }
 #endif /* CONFIG_SMP */
 
-int ia64_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
+int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 {
 	struct msi_msg	msg;
 	unsigned long	dest_phys_id;
-	unsigned int	vector;
+	unsigned int	irq, vector;
 
+	irq = create_irq();
+	if (irq < 0)
+		return irq;
+
+	set_irq_msi(irq, desc);
 	dest_phys_id = cpu_physical_id(first_cpu(cpu_online_map));
 	vector = irq;
 
@@ -89,12 +94,12 @@ int ia64_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
 	write_msi_msg(irq, &msg);
 	set_irq_chip_and_handler(irq, &ia64_msi_chip, handle_edge_irq);
 
-	return 0;
+	return irq;
 }
 
 void ia64_teardown_msi_irq(unsigned int irq)
 {
-	return;		/* no-op */
+	destroy_irq(irq);
 }
 
 static void ia64_ack_msi_irq(unsigned int irq)
@@ -126,12 +131,12 @@ static struct irq_chip ia64_msi_chip = {
 };
 
 
-int arch_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
+int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
 {
 	if (platform_setup_msi_irq)
-		return platform_setup_msi_irq(irq, pdev);
+		return platform_setup_msi_irq(pdev, desc);
 
-	return ia64_setup_msi_irq(irq, pdev);
+	return ia64_setup_msi_irq(pdev, desc);
 }
 
 void arch_teardown_msi_irq(unsigned int irq)

arch/ia64/sn/kernel/msi_sn.c

@@ -59,13 +59,12 @@ void sn_teardown_msi_irq(unsigned int irq)
 	sn_intr_free(nasid, widget, sn_irq_info);
 	sn_msi_info[irq].sn_irq_info = NULL;
 
-	return;
+	destroy_irq(irq);
 }
 
-int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
+int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry)
 {
 	struct msi_msg msg;
-	struct msi_desc *entry;
 	int widget;
 	int status;
 	nasid_t nasid;
@@ -73,8 +72,8 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
 	struct sn_irq_info *sn_irq_info;
 	struct pcibus_bussoft *bussoft = SN_PCIDEV_BUSSOFT(pdev);
 	struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
+	int irq;
 
-	entry = get_irq_data(irq);
 	if (!entry->msi_attrib.is_64)
 		return -EINVAL;
 
@@ -84,6 +83,11 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
 	if (provider == NULL || provider->dma_map_consistent == NULL)
 		return -EINVAL;
 
+	irq = create_irq();
+	if (irq < 0)
+		return irq;
+
+	set_irq_msi(irq, entry);
 	/*
 	 * Set up the vector plumbing.  Let the prom (via sn_intr_alloc)
 	 * decide which cpu to direct this msi at by default.
@@ -95,12 +99,15 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
 			SWIN_WIDGETNUM(bussoft->bs_base);
 
 	sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
-	if (! sn_irq_info)
+	if (! sn_irq_info) {
+		destroy_irq(irq);
 		return -ENOMEM;
+	}
 
 	status = sn_intr_alloc(nasid, widget, sn_irq_info, irq, -1, -1);
 	if (status) {
 		kfree(sn_irq_info);
+		destroy_irq(irq);
 		return -ENOMEM;
 	}
 
@@ -121,6 +128,7 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
 	if (! bus_addr) {
 		sn_intr_free(nasid, widget, sn_irq_info);
 		kfree(sn_irq_info);
+		destroy_irq(irq);
 		return -ENOMEM;
 	}
 
@@ -139,7 +147,7 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
 	write_msi_msg(irq, &msg);
 	set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);
 
-	return 0;
+	return irq;
 }
 
 #ifdef CONFIG_SMP

arch/powerpc/kernel/pci_64.c

@@ -381,8 +381,6 @@ struct pci_dev *of_create_pci_dev(struct device_node *node,
 
 	pci_device_add(dev, bus);
 
-	/* XXX pci_scan_msi_device(dev); */
-
 	return dev;
 }
 EXPORT_SYMBOL(of_create_pci_dev);

arch/x86_64/kernel/io_apic.c

@@ -1956,24 +1956,31 @@ static struct irq_chip msi_chip = {
 	.retrigger	= ioapic_retrigger_irq,
 };
 
-int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev)
+int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
 {
 	struct msi_msg msg;
-	int ret;
+	int irq, ret;
+	irq = create_irq();
+	if (irq < 0)
+		return irq;
+
+	set_irq_msi(irq, desc);
 	ret = msi_compose_msg(dev, irq, &msg);
-	if (ret < 0)
+	if (ret < 0) {
+		destroy_irq(irq);
 		return ret;
+	}
 
 	write_msi_msg(irq, &msg);
 
 	set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq, "edge");
 
-	return 0;
+	return irq;
 }
 
 void arch_teardown_msi_irq(unsigned int irq)
 {
-	return;
+	destroy_irq(irq);
 }
 
 #endif /* CONFIG_PCI_MSI */

drivers/net/bnx2.c

@@ -5947,8 +5947,7 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
 	 * responding after a while.
 	 *
 	 * AMD believes this incompatibility is unique to the 5706, and
-	 * prefers to locally disable MSI rather than globally disabling it
-	 * using pci_msi_quirk.
+	 * prefers to locally disable MSI rather than globally disabling it.
 	 */
 	if (CHIP_NUM(bp) == CHIP_NUM_5706 && disable_msi == 0) {
 		struct pci_dev *amd_8132 = NULL;

drivers/net/e1000/e1000_main.c

@@ -3584,7 +3584,7 @@ e1000_update_stats(struct e1000_adapter *adapter)
 	 */
 	if (adapter->link_speed == 0)
 		return;
-	if (pdev->error_state && pdev->error_state != pci_channel_io_normal)
+	if (pci_channel_offline(pdev))
 		return;
 
 	spin_lock_irqsave(&adapter->stats_lock, flags);

drivers/net/ixgb/ixgb_main.c

@@ -1605,7 +1605,7 @@ ixgb_update_stats(struct ixgb_adapter *adapter)
 	struct pci_dev *pdev = adapter->pdev;
 
 	/* Prevent stats update while adapter is being reset */
-	if (pdev->error_state && pdev->error_state != pci_channel_io_normal)
+	if (pci_channel_offline(pdev))
 		return;
 
 	if((netdev->flags & IFF_PROMISC) || (netdev->flags & IFF_ALLMULTI) ||

drivers/pci/hotplug/Kconfig

@@ -145,15 +145,6 @@ config HOTPLUG_PCI_SHPC
 
 	  When in doubt, say N.
 
-config HOTPLUG_PCI_SHPC_POLL_EVENT_MODE
-	bool "Use polling mechanism for hot-plug events (for testing purpose)"
-	depends on HOTPLUG_PCI_SHPC
-	help
-	  Say Y here if you want to use the polling mechanism for hot-plug 
-	  events for early platform testing.
-
-	  When in doubt, say N.
-
 config HOTPLUG_PCI_RPA
 	tristate "RPA PCI Hotplug driver"
 	depends on HOTPLUG_PCI && PPC_PSERIES && PPC64 && !HOTPLUG_PCI_FAKE

drivers/pci/hotplug/pciehp.h

@@ -44,15 +44,20 @@ extern int pciehp_poll_time;
 extern int pciehp_debug;
 extern int pciehp_force;
 
-/*#define dbg(format, arg...) do { if (pciehp_debug) printk(KERN_DEBUG "%s: " format, MY_NAME , ## arg); } while (0)*/
-#define dbg(format, arg...) do { if (pciehp_debug) printk("%s: " format, MY_NAME , ## arg); } while (0)
-#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
-#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
-#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
-
+#define dbg(format, arg...)						\
+	do {								\
+		if (pciehp_debug)					\
+			printk("%s: " format, MY_NAME , ## arg);	\
+	} while (0)
+#define err(format, arg...)						\
+	printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
+#define info(format, arg...)						\
+	printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
+#define warn(format, arg...)						\
+	printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
 
+#define SLOT_NAME_SIZE 10
 struct slot {
-	struct slot *next;
 	u8 bus;
 	u8 device;
 	u32 number;
@@ -63,6 +68,8 @@ struct slot {
 	struct hpc_ops *hpc_ops;
 	struct hotplug_slot *hotplug_slot;
 	struct list_head	slot_list;
+	char name[SLOT_NAME_SIZE];
+	unsigned long last_emi_toggle;
 };
 
 struct event_info {
@@ -70,34 +77,15 @@ struct event_info {
 	u8 hp_slot;
 };
 
-typedef u8(*php_intr_callback_t) (u8 hp_slot, void *instance_id);
-
-struct php_ctlr_state_s {
-	struct php_ctlr_state_s *pnext;
-	struct pci_dev *pci_dev;
-	unsigned int irq;
-	unsigned long flags;				/* spinlock's */
-	u32 slot_device_offset;
-	u32 num_slots;
-    	struct timer_list	int_poll_timer;		/* Added for poll event */
-	php_intr_callback_t 	attention_button_callback;
-	php_intr_callback_t 	switch_change_callback;
-	php_intr_callback_t 	presence_change_callback;
-	php_intr_callback_t 	power_fault_callback;
-	void 			*callback_instance_id;
-	struct ctrl_reg 	*creg;				/* Ptr to controller register space */
-};
-
 #define MAX_EVENTS		10
 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 */
 	struct pci_dev *pci_dev;
-	struct pci_bus *pci_bus;
+	struct list_head slot_list;
 	struct event_info event_queue[MAX_EVENTS];
 	struct slot *slot;
 	struct hpc_ops *hpc_ops;
@@ -112,6 +100,8 @@ struct controller {
 	u8 ctrlcap;
 	u16 vendor_id;
 	u8 cap_base;
+	struct timer_list poll_timer;
+	volatile int cmd_busy;
 };
 
 #define INT_BUTTON_IGNORE		0
@@ -131,8 +121,6 @@ struct controller {
 #define POWERON_STATE			3
 #define POWEROFF_STATE			4
 
-#define PCI_TO_PCI_BRIDGE_CLASS		0x00060400
-
 /* Error messages */
 #define INTERLOCK_OPEN			0x00000002
 #define ADD_NOT_SUPPORTED		0x00000003
@@ -144,10 +132,6 @@ struct controller {
 #define WRONG_BUS_FREQUENCY		0x0000000D
 #define POWER_FAILURE			0x0000000E
 
-#define REMOVE_NOT_SUPPORTED		0x00000003
-
-#define DISABLE_CARD			1
-
 /* Field definitions in Slot Capabilities Register */
 #define ATTN_BUTTN_PRSN	0x00000001
 #define	PWR_CTRL_PRSN	0x00000002
@@ -155,6 +139,7 @@ struct controller {
 #define ATTN_LED_PRSN	0x00000008
 #define PWR_LED_PRSN	0x00000010
 #define HP_SUPR_RM_SUP	0x00000020
+#define EMI_PRSN	0x00020000
 
 #define ATTN_BUTTN(cap)		(cap & ATTN_BUTTN_PRSN)
 #define POWER_CTRL(cap)		(cap & PWR_CTRL_PRSN)
@@ -162,130 +147,65 @@ struct controller {
 #define ATTN_LED(cap)		(cap & ATTN_LED_PRSN)
 #define PWR_LED(cap)		(cap & PWR_LED_PRSN) 
 #define HP_SUPR_RM(cap)		(cap & HP_SUPR_RM_SUP)
-
-/*
- * error Messages
- */
-#define msg_initialization_err	"Initialization failure, error=%d\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);
-extern void	pciehp_event_stop_thread	(void);
-extern int	pciehp_enable_slot		(struct slot *slot);
-extern int	pciehp_disable_slot		(struct slot *slot);
-
-extern u8	pciehp_handle_attention_button	(u8 hp_slot, void *inst_id);
-extern u8	pciehp_handle_switch_change	(u8 hp_slot, void *inst_id);
-extern u8	pciehp_handle_presence_change	(u8 hp_slot, void *inst_id);
-extern u8	pciehp_handle_power_fault	(u8 hp_slot, void *inst_id);
-/* extern void	long_delay (int delay); */
-
-/* pci functions */
-extern int	pciehp_configure_device		(struct slot *p_slot);
-extern int	pciehp_unconfigure_device	(struct slot *p_slot);
-
-
+#define EMI(cap)		(cap & EMI_PRSN)
+
+extern int pciehp_event_start_thread(void);
+extern void pciehp_event_stop_thread(void);
+extern int pciehp_enable_slot(struct slot *slot);
+extern int pciehp_disable_slot(struct slot *slot);
+extern u8 pciehp_handle_attention_button(u8 hp_slot, struct controller *ctrl);
+extern u8 pciehp_handle_switch_change(u8 hp_slot, struct controller *ctrl);
+extern u8 pciehp_handle_presence_change(u8 hp_slot, struct controller *ctrl);
+extern u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl);
+extern int pciehp_configure_device(struct slot *p_slot);
+extern int pciehp_unconfigure_device(struct slot *p_slot);
+int pcie_init(struct controller *ctrl, struct pcie_device *dev);
 
 /* Global variables */
 extern struct controller *pciehp_ctrl_list;
 
-/* Inline functions */
-
 static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device)
 {
-	struct slot *p_slot, *tmp_slot = NULL;
-
-	p_slot = ctrl->slot;
+	struct slot *slot;
 
-	while (p_slot && (p_slot->device != device)) {
-		tmp_slot = p_slot;
-		p_slot = p_slot->next;
+	list_for_each_entry(slot, &ctrl->slot_list, slot_list) {
+		if (slot->device == device)
+			return slot;
 	}
-	if (p_slot == NULL) {
-		err("ERROR: pciehp_find_slot device=0x%x\n", device);
-		p_slot = tmp_slot;
-	}
-
-	return p_slot;
-}
-
-static inline int wait_for_ctrl_irq(struct controller *ctrl)
-{
-	int retval = 0;
-
-	DECLARE_WAITQUEUE(wait, current);
-
-	add_wait_queue(&ctrl->queue, &wait);
-	if (!pciehp_poll_mode)
-		/* Sleep for up to 1 second */
-		msleep_interruptible(1000);
-	else
-		msleep_interruptible(2500);
-	
-	remove_wait_queue(&ctrl->queue, &wait);
-	if (signal_pending(current))
-		retval =  -EINTR;
-
-	return retval;
-}
-
-#define SLOT_NAME_SIZE 10
 
-static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot)
-{
-	snprintf(buffer, buffer_size, "%04d_%04d", slot->bus, slot->number);
+	err("%s: slot (device=0x%x) not found\n", __FUNCTION__, device);
+	return NULL;
 }
 
-enum php_ctlr_type {
-	PCI,
-	ISA,
-	ACPI
-};
-
-int pcie_init(struct controller *ctrl, struct pcie_device *dev);
-
-/* This has no meaning for PCI Express, as there is only 1 slot per port */
-int pcie_get_ctlr_slot_config(struct controller *ctrl,
-		int *num_ctlr_slots,
-		int *first_device_num,
-		int *physical_slot_num,
-		u8 *ctrlcap);
-
 struct hpc_ops {
-	int	(*power_on_slot)	(struct slot *slot);
-	int	(*power_off_slot)	(struct slot *slot);
-	int	(*get_power_status)	(struct slot *slot, u8 *status);
-	int	(*get_attention_status)	(struct slot *slot, u8 *status);
-	int	(*set_attention_status)	(struct slot *slot, u8 status);
-	int	(*get_latch_status)	(struct slot *slot, u8 *status);
-	int	(*get_adapter_status)	(struct slot *slot, u8 *status);
-
-	int	(*get_max_bus_speed)	(struct slot *slot, enum pci_bus_speed *speed);
-	int	(*get_cur_bus_speed)	(struct slot *slot, enum pci_bus_speed *speed);
-
-	int	(*get_max_lnk_width)	(struct slot *slot, enum pcie_link_width *value);
-	int	(*get_cur_lnk_width)	(struct slot *slot, enum pcie_link_width *value);
-	
-	int	(*query_power_fault)	(struct slot *slot);
-	void	(*green_led_on)		(struct slot *slot);
-	void	(*green_led_off)	(struct slot *slot);
-	void	(*green_led_blink)	(struct slot *slot);
-	void	(*release_ctlr)		(struct controller *ctrl);
-	int	(*check_lnk_status)	(struct controller *ctrl);
+	int (*power_on_slot)(struct slot *slot);
+	int (*power_off_slot)(struct slot *slot);
+	int (*get_power_status)(struct slot *slot, u8 *status);
+	int (*get_attention_status)(struct slot *slot, u8 *status);
+	int (*set_attention_status)(struct slot *slot, u8 status);
+	int (*get_latch_status)(struct slot *slot, u8 *status);
+	int (*get_adapter_status)(struct slot *slot, u8 *status);
+	int (*get_emi_status)(struct slot *slot, u8 *status);
+	int (*toggle_emi)(struct slot *slot);
+	int (*get_max_bus_speed)(struct slot *slot, enum pci_bus_speed *speed);
+	int (*get_cur_bus_speed)(struct slot *slot, enum pci_bus_speed *speed);
+	int (*get_max_lnk_width)(struct slot *slot, enum pcie_link_width *val);
+	int (*get_cur_lnk_width)(struct slot *slot, enum pcie_link_width *val);
+	int (*query_power_fault)(struct slot *slot);
+	void (*green_led_on)(struct slot *slot);
+	void (*green_led_off)(struct slot *slot);
+	void (*green_led_blink)(struct slot *slot);
+	void (*release_ctlr)(struct controller *ctrl);
+	int (*check_lnk_status)(struct controller *ctrl);
 };
 
-
 #ifdef CONFIG_ACPI
 #include <acpi/acpi.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/actypes.h>
 #include <linux/pci-acpi.h>
 
-#define pciehp_get_hp_hw_control_from_firmware(dev) \
+#define pciehp_get_hp_hw_control_from_firmware(dev)			\
 	pciehp_acpi_get_hp_hw_control_from_firmware(dev)
 static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev,
 			struct hotplug_params *hpp)

drivers/pci/hotplug/shpchp.h

@@ -106,7 +106,7 @@ struct controller {
 };
 
 /* Define AMD SHPC ID  */
-#define PCI_DEVICE_ID_AMD_GOLAM_7450	0x7450 
+#define PCI_DEVICE_ID_AMD_GOLAM_7450	0x7450
 #define PCI_DEVICE_ID_AMD_POGO_7458	0x7458
 
 /* AMD PCIX bridge registers */
@@ -221,7 +221,7 @@ enum ctrl_offsets {
 };
 
 static inline struct slot *get_slot(struct hotplug_slot *hotplug_slot)
-{ 
+{
 	return hotplug_slot->private;
 }
 

drivers/pci/hotplug/shpchp_core.c

@@ -401,10 +401,6 @@ static int __init shpcd_init(void)
 {
 	int retval = 0;
 
-#ifdef CONFIG_HOTPLUG_PCI_SHPC_POLL_EVENT_MODE
-	shpchp_poll_mode = 1;
-#endif
-
 	retval = pci_register_driver(&shpc_driver);
 	dbg("%s: pci_register_driver = %d\n", __FUNCTION__, retval);
 	info(DRIVER_DESC " version: " DRIVER_VERSION "\n");

drivers/pci/hotplug/shpchp_ctrl.c

@@ -64,7 +64,7 @@ u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl)
 
 	/* Attention Button Change */
 	dbg("shpchp:  Attention button interrupt received.\n");
-	
+
 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
 
@@ -128,7 +128,7 @@ u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl)
 
 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
 
-	/* 
+	/*
 	 * Save the presence state
 	 */
 	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
@@ -184,12 +184,12 @@ u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl)
 	return 1;
 }
 
-/* The following routines constitute the bulk of the 
+/* The following routines constitute the bulk of the
    hotplug controller logic
  */
 static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,
 		enum pci_bus_speed speed)
-{ 
+{
 	int rc = 0;
 
 	dbg("%s: change to speed %d\n", __FUNCTION__, speed);
@@ -204,7 +204,7 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,
 static int fix_bus_speed(struct controller *ctrl, struct slot *pslot,
 		u8 flag, enum pci_bus_speed asp, enum pci_bus_speed bsp,
 		enum pci_bus_speed msp)
-{ 
+{
 	int rc = 0;
 
 	/*
@@ -257,23 +257,23 @@ static int board_added(struct slot *p_slot)
 		err("%s: Failed to power on slot\n", __FUNCTION__);
 		return -1;
 	}
-	
+
 	if ((ctrl->pci_dev->vendor == 0x8086) && (ctrl->pci_dev->device == 0x0332)) {
 		if (slots_not_empty)
 			return WRONG_BUS_FREQUENCY;
-		
+
 		if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz))) {
 			err("%s: Issue of set bus speed mode command failed\n", __FUNCTION__);
 			return WRONG_BUS_FREQUENCY;
 		}
-		
+
 		/* turn on board, blink green LED, turn off Amber LED */
 		if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {
 			err("%s: Issue of Slot Enable command failed\n", __FUNCTION__);
 			return rc;
 		}
 	}
- 
+
 	rc = p_slot->hpc_ops->get_adapter_speed(p_slot, &asp);
 	if (rc) {
 		err("%s: Can't get adapter speed or bus mode mismatch\n",
@@ -378,7 +378,7 @@ static int remove_board(struct slot *p_slot)
 		err("%s: Issue of Slot Disable command failed\n", __FUNCTION__);
 		return rc;
 	}
-	
+
 	rc = p_slot->hpc_ops->set_attention_status(p_slot, 0);
 	if (rc) {
 		err("%s: Issue of Set Attention command failed\n", __FUNCTION__);

drivers/pci/pci-driver.c

@@ -324,8 +324,7 @@ static int pci_default_resume(struct pci_dev *pci_dev)
 	/* restore the PCI config space */
 	pci_restore_state(pci_dev);
 	/* if the device was enabled before suspend, reenable */
-	if (atomic_read(&pci_dev->enable_cnt))
-		retval = __pci_enable_device(pci_dev);
+	retval = __pci_reenable_device(pci_dev);
 	/* if the device was busmaster before the suspend, make it busmaster again */
 	if (pci_dev->is_busmaster)
 		pci_set_master(pci_dev);

drivers/pci/pci.c

@@ -392,6 +392,14 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 	if (state > PCI_D3hot)
 		state = PCI_D3hot;
 
+	/*
+	 * If the device or the parent bridge can't support PCI PM, ignore
+	 * the request if we're doing anything besides putting it into D0
+	 * (which would only happen on boot).
+	 */
+	if ((state == PCI_D1 || state == PCI_D2) && pci_no_d1d2(dev))
+		return 0;
+
 	/* Validate current state:
 	 * Can enter D0 from any state, but if we can only go deeper 
 	 * to sleep if we're already in a low power state
@@ -403,13 +411,6 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 	} else if (dev->current_state == state)
 		return 0;        /* we're already there */
 
-	/*
-	 * If the device or the parent bridge can't support PCI PM, ignore
-	 * the request if we're doing anything besides putting it into D0
-	 * (which would only happen on boot).
-	 */
-	if ((state == PCI_D1 || state == PCI_D2) && pci_no_d1d2(dev))
-		return 0;
 
 	/* find PCI PM capability in list */
 	pm = pci_find_capability(dev, PCI_CAP_ID_PM);
@@ -633,8 +634,6 @@ pci_save_state(struct pci_dev *dev)
 		pci_read_config_dword(dev, i * 4,&dev->saved_config_space[i]);
 	if ((i = pci_save_msi_state(dev)) != 0)
 		return i;
-	if ((i = pci_save_msix_state(dev)) != 0)
-		return i;
 	if ((i = pci_save_pcie_state(dev)) != 0)
 		return i;
 	if ((i = pci_save_pcix_state(dev)) != 0)
@@ -672,22 +671,11 @@ pci_restore_state(struct pci_dev *dev)
 	}
 	pci_restore_pcix_state(dev);
 	pci_restore_msi_state(dev);
-	pci_restore_msix_state(dev);
+
 	return 0;
 }
 
-/**
- * pci_enable_device_bars - Initialize some of a device for use
- * @dev: PCI device to be initialized
- * @bars: bitmask of BAR's that must be configured
- *
- *  Initialize device before it's used by a driver. Ask low-level code
- *  to enable selected I/O and memory resources. Wake up the device if it 
- *  was suspended. Beware, this function can fail.
- */
- 
-int
-pci_enable_device_bars(struct pci_dev *dev, int bars)
+static int do_pci_enable_device(struct pci_dev *dev, int bars)
 {
 	int err;
 
@@ -697,30 +685,47 @@ pci_enable_device_bars(struct pci_dev *dev, int bars)
 	err = pcibios_enable_device(dev, bars);
 	if (err < 0)
 		return err;
+	pci_fixup_device(pci_fixup_enable, dev);
+
 	return 0;
 }
 
 /**
- * __pci_enable_device - Initialize device before it's used by a driver.
+ * __pci_reenable_device - Resume abandoned device
+ * @dev: PCI device to be resumed
+ *
+ *  Note this function is a backend of pci_default_resume and is not supposed
+ *  to be called by normal code, write proper resume handler and use it instead.
+ */
+int
+__pci_reenable_device(struct pci_dev *dev)
+{
+	if (atomic_read(&dev->enable_cnt))
+		return do_pci_enable_device(dev, (1 << PCI_NUM_RESOURCES) - 1);
+	return 0;
+}
+
+/**
+ * pci_enable_device_bars - Initialize some of a device for use
  * @dev: PCI device to be initialized
+ * @bars: bitmask of BAR's that must be configured
  *
  *  Initialize device before it's used by a driver. Ask low-level code
- *  to enable I/O and memory. Wake up the device if it was suspended.
- *  Beware, this function can fail.
- *
- * Note this function is a backend and is not supposed to be called by
- * normal code, use pci_enable_device() instead.
+ *  to enable selected I/O and memory resources. Wake up the device if it
+ *  was suspended. Beware, this function can fail.
  */
 int
-__pci_enable_device(struct pci_dev *dev)
+pci_enable_device_bars(struct pci_dev *dev, int bars)
 {
 	int err;
 
-	err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
-	if (err)
-		return err;
-	pci_fixup_device(pci_fixup_enable, dev);
-	return 0;
+	if (atomic_add_return(1, &dev->enable_cnt) > 1)
+		return 0;		/* already enabled */
+
+	err = do_pci_enable_device(dev, bars);
+	if (err < 0)
+		atomic_dec(&dev->enable_cnt);
+	return err;
 }
 
 /**
@@ -736,13 +741,7 @@ __pci_enable_device(struct pci_dev *dev)
  */
 int pci_enable_device(struct pci_dev *dev)
 {
-	int result;
-	if (atomic_add_return(1, &dev->enable_cnt) > 1)
-		return 0;		/* already enabled */
-	result = __pci_enable_device(dev);
-	if (result < 0)
-		atomic_dec(&dev->enable_cnt);
-	return result;
+	return pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
 }
 
 /**
@@ -921,6 +920,47 @@ int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name)
 	return -EBUSY;
 }
 
+/**
+ * pci_release_selected_regions - Release selected PCI I/O and memory resources
+ * @pdev: PCI device whose resources were previously reserved
+ * @bars: Bitmask of BARs to be released
+ *
+ * Release selected PCI I/O and memory resources previously reserved.
+ * Call this function only after all use of the PCI regions has ceased.
+ */
+void pci_release_selected_regions(struct pci_dev *pdev, int bars)
+{
+	int i;
+
+	for (i = 0; i < 6; i++)
+		if (bars & (1 << i))
+			pci_release_region(pdev, i);
+}
+
+/**
+ * pci_request_selected_regions - Reserve selected PCI I/O and memory resources
+ * @pdev: PCI device whose resources are to be reserved
+ * @bars: Bitmask of BARs to be requested
+ * @res_name: Name to be associated with resource
+ */
+int pci_request_selected_regions(struct pci_dev *pdev, int bars,
+				 const char *res_name)
+{
+	int i;
+
+	for (i = 0; i < 6; i++)
+		if (bars & (1 << i))
+			if(pci_request_region(pdev, i, res_name))
+				goto err_out;
+	return 0;
+
+err_out:
+	while(--i >= 0)
+		if (bars & (1 << i))
+			pci_release_region(pdev, i);
+
+	return -EBUSY;
+}
 
 /**
  *	pci_release_regions - Release reserved PCI I/O and memory resources
@@ -933,10 +973,7 @@ int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name)
 
 void pci_release_regions(struct pci_dev *pdev)
 {
-	int i;
-	
-	for (i = 0; i < 6; i++)
-		pci_release_region(pdev, i);
+	pci_release_selected_regions(pdev, (1 << 6) - 1);
 }
 
 /**
@@ -954,18 +991,7 @@ void pci_release_regions(struct pci_dev *pdev)
  */
 int pci_request_regions(struct pci_dev *pdev, const char *res_name)
 {
-	int i;
-	
-	for (i = 0; i < 6; i++)
-		if(pci_request_region(pdev, i, res_name))
-			goto err_out;
-	return 0;
-
-err_out:
-	while(--i >= 0)
-		pci_release_region(pdev, i);
-		
-	return -EBUSY;
+	return pci_request_selected_regions(pdev, ((1 << 6) - 1), res_name);
 }
 
 /**
@@ -1148,7 +1174,23 @@ pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
 	return 0;
 }
 #endif
-     
+
+/**
+ * pci_select_bars - Make BAR mask from the type of resource
+ * @pdev: the PCI device for which BAR mask is made
+ * @flags: resource type mask to be selected
+ *
+ * This helper routine makes bar mask from the type of resource.
+ */
+int pci_select_bars(struct pci_dev *dev, unsigned long flags)
+{
+	int i, bars = 0;
+	for (i = 0; i < PCI_NUM_RESOURCES; i++)
+		if (pci_resource_flags(dev, i) & flags)
+			bars |= (1 << i);
+	return bars;
+}
+
 static int __devinit pci_init(void)
 {
 	struct pci_dev *dev = NULL;
@@ -1181,12 +1223,6 @@ early_param("pci", pci_setup);
 
 device_initcall(pci_init);
 
-#if defined(CONFIG_ISA) || defined(CONFIG_EISA)
-/* FIXME: Some boxes have multiple ISA bridges! */
-struct pci_dev *isa_bridge;
-EXPORT_SYMBOL(isa_bridge);
-#endif
-
 EXPORT_SYMBOL_GPL(pci_restore_bars);
 EXPORT_SYMBOL(pci_enable_device_bars);
 EXPORT_SYMBOL(pci_enable_device);
@@ -1197,6 +1233,8 @@ EXPORT_SYMBOL(pci_release_regions);
 EXPORT_SYMBOL(pci_request_regions);
 EXPORT_SYMBOL(pci_release_region);
 EXPORT_SYMBOL(pci_request_region);
+EXPORT_SYMBOL(pci_release_selected_regions);
+EXPORT_SYMBOL(pci_request_selected_regions);
 EXPORT_SYMBOL(pci_set_master);
 EXPORT_SYMBOL(pci_set_mwi);
 EXPORT_SYMBOL(pci_clear_mwi);
@@ -1205,13 +1243,10 @@ EXPORT_SYMBOL(pci_set_dma_mask);
 EXPORT_SYMBOL(pci_set_consistent_dma_mask);
 EXPORT_SYMBOL(pci_assign_resource);
 EXPORT_SYMBOL(pci_find_parent_resource);
+EXPORT_SYMBOL(pci_select_bars);
 
 EXPORT_SYMBOL(pci_set_power_state);
 EXPORT_SYMBOL(pci_save_state);
 EXPORT_SYMBOL(pci_restore_state);
 EXPORT_SYMBOL(pci_enable_wake);
 
-/* Quirk info */
-
-EXPORT_SYMBOL(isa_dma_bridge_buggy);
-EXPORT_SYMBOL(pci_pci_problems);

drivers/pci/pci.h

 /* Functions internal to the PCI core code */
 
-extern int __must_check __pci_enable_device(struct pci_dev *);
+extern int __must_check __pci_reenable_device(struct pci_dev *);
 extern int pci_uevent(struct device *dev, char **envp, int num_envp,
 		      char *buffer, int buffer_size);
 extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
@@ -43,12 +43,8 @@ extern void pci_remove_legacy_files(struct pci_bus *bus);
 /* Lock for read/write access to pci device and bus lists */
 extern struct rw_semaphore pci_bus_sem;
 
-#ifdef CONFIG_PCI_MSI
-extern int pci_msi_quirk;
-#else
-#define pci_msi_quirk 0
-#endif
 extern unsigned int pci_pm_d3_delay;
+
 #ifdef CONFIG_PCI_MSI
 void disable_msi_mode(struct pci_dev *dev, int pos, int type);
 void pci_no_msi(void);
@@ -56,17 +52,15 @@ void pci_no_msi(void);
 static inline void disable_msi_mode(struct pci_dev *dev, int pos, int type) { }
 static inline void pci_no_msi(void) { }
 #endif
+
 #if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM)
 int pci_save_msi_state(struct pci_dev *dev);
-int pci_save_msix_state(struct pci_dev *dev);
 void pci_restore_msi_state(struct pci_dev *dev);
-void pci_restore_msix_state(struct pci_dev *dev);
 #else
 static inline int pci_save_msi_state(struct pci_dev *dev) { return 0; }
-static inline int pci_save_msix_state(struct pci_dev *dev) { return 0; }
 static inline void pci_restore_msi_state(struct pci_dev *dev) {}
-static inline void pci_restore_msix_state(struct pci_dev *dev) {}
 #endif
+
 static inline int pci_no_d1d2(struct pci_dev *dev)
 {
 	unsigned int parent_dstates = 0;

drivers/pci/probe.c

@@ -144,6 +144,32 @@ static u32 pci_size(u32 base, u32 maxbase, u32 mask)
 	return size;
 }
 
+static u64 pci_size64(u64 base, u64 maxbase, u64 mask)
+{
+	u64 size = mask & maxbase;	/* Find the significant bits */
+	if (!size)
+		return 0;
+
+	/* Get the lowest of them to find the decode size, and
+	   from that the extent.  */
+	size = (size & ~(size-1)) - 1;
+
+	/* base == maxbase can be valid only if the BAR has
+	   already been programmed with all 1s.  */
+	if (base == maxbase && ((base | size) & mask) != mask)
+		return 0;
+
+	return size;
+}
+
+static inline int is_64bit_memory(u32 mask)
+{
+	if ((mask & (PCI_BASE_ADDRESS_SPACE|PCI_BASE_ADDRESS_MEM_TYPE_MASK)) ==
+	    (PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64))
+		return 1;
+	return 0;
+}
+
 static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
 {
 	unsigned int pos, reg, next;
@@ -151,6 +177,10 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
 	struct resource *res;
 
 	for(pos=0; pos<howmany; pos = next) {
+		u64 l64;
+		u64 sz64;
+		u32 raw_sz;
+
 		next = pos+1;
 		res = &dev->resource[pos];
 		res->name = pci_name(dev);
@@ -163,9 +193,16 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
 			continue;
 		if (l == 0xffffffff)
 			l = 0;
-		if ((l & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY) {
+		raw_sz = sz;
+		if ((l & PCI_BASE_ADDRESS_SPACE) ==
+				PCI_BASE_ADDRESS_SPACE_MEMORY) {
 			sz = pci_size(l, sz, (u32)PCI_BASE_ADDRESS_MEM_MASK);
-			if (!sz)
+			/*
+			 * For 64bit prefetchable memory sz could be 0, if the
+			 * real size is bigger than 4G, so we need to check
+			 * szhi for that.
+			 */
+			if (!is_64bit_memory(l) && !sz)
 				continue;
 			res->start = l & PCI_BASE_ADDRESS_MEM_MASK;
 			res->flags |= l & ~PCI_BASE_ADDRESS_MEM_MASK;
@@ -178,30 +215,36 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
 		}
 		res->end = res->start + (unsigned long) sz;
 		res->flags |= pci_calc_resource_flags(l);
-		if ((l & (PCI_BASE_ADDRESS_SPACE | PCI_BASE_ADDRESS_MEM_TYPE_MASK))
-		    == (PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64)) {
+		if (is_64bit_memory(l)) {
 			u32 szhi, lhi;
+
 			pci_read_config_dword(dev, reg+4, &lhi);
 			pci_write_config_dword(dev, reg+4, ~0);
 			pci_read_config_dword(dev, reg+4, &szhi);
 			pci_write_config_dword(dev, reg+4, lhi);
-			szhi = pci_size(lhi, szhi, 0xffffffff);
+			sz64 = ((u64)szhi << 32) | raw_sz;
+			l64 = ((u64)lhi << 32) | l;
+			sz64 = pci_size64(l64, sz64, PCI_BASE_ADDRESS_MEM_MASK);
 			next++;
 #if BITS_PER_LONG == 64
-			res->start |= ((unsigned long) lhi) << 32;
-			res->end = res->start + sz;
-			if (szhi) {
-				/* This BAR needs > 4GB?  Wow. */
-				res->end |= (unsigned long)szhi<<32;
+			if (!sz64) {
+				res->start = 0;
+				res->end = 0;
+				res->flags = 0;
+				continue;
 			}
+			res->start = l64 & PCI_BASE_ADDRESS_MEM_MASK;
+			res->end = res->start + sz64;
 #else
-			if (szhi) {
-				printk(KERN_ERR "PCI: Unable to handle 64-bit BAR for device %s\n", pci_name(dev));
+			if (sz64 > 0x100000000ULL) {
+				printk(KERN_ERR "PCI: Unable to handle 64-bit "
+					"BAR for device %s\n", pci_name(dev));
 				res->start = 0;
 				res->flags = 0;
 			} else if (lhi) {
 				/* 64-bit wide address, treat as disabled */
-				pci_write_config_dword(dev, reg, l & ~(u32)PCI_BASE_ADDRESS_MEM_MASK);
+				pci_write_config_dword(dev, reg,
+					l & ~(u32)PCI_BASE_ADDRESS_MEM_MASK);
 				pci_write_config_dword(dev, reg+4, 0);
 				res->start = 0;
 				res->end = sz;
@@ -902,7 +945,6 @@ pci_scan_single_device(struct pci_bus *bus, int devfn)
 		return NULL;
 
 	pci_device_add(dev, bus);
-	pci_scan_msi_device(dev);
 
 	return dev;
 }

drivers/pci/search.c

@@ -357,43 +357,6 @@ pci_get_device_reverse(unsigned int vendor, unsigned int device, struct pci_dev
 	return dev;
 }
 
-/**
- * pci_find_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_find_device().
- * If a PCI device is found with a matching @vendor and @device, 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 previous device
- * on the global list.
- */
-struct pci_dev *
-pci_find_device_reverse(unsigned int vendor, unsigned int device, const 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:
-	up_read(&pci_bus_sem);
-	return dev;
-}
-
 /**
  * pci_get_class - begin or continue searching for a PCI device by class
  * @class: search for a PCI device with this class designation
@@ -469,7 +432,6 @@ EXPORT_SYMBOL(pci_dev_present);
 EXPORT_SYMBOL(pci_find_present);
 
 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);

drivers/scsi/ipr.c

@@ -7558,9 +7558,6 @@ static struct pci_device_id ipr_pci_table[] __devinitdata = {
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
 	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C,
 	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
-	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
-	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B8,
-	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
 	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
 	      PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7,
 	      0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },

include/asm-alpha/pci.h

@@ -293,4 +293,6 @@ struct pci_dev *alpha_gendev_to_pci(struct device *dev);
 #define IOBASE_ROOT_BUS		5
 #define IOBASE_FROM_HOSE	0x10000
 
+extern struct pci_dev *isa_bridge;
+
 #endif /* __ALPHA_PCI_H */

include/asm-ia64/machvec.h

@@ -21,6 +21,7 @@ struct mm_struct;
 struct pci_bus;
 struct task_struct;
 struct pci_dev;
+struct msi_desc;
 
 typedef void ia64_mv_setup_t (char **);
 typedef void ia64_mv_cpu_init_t (void);
@@ -79,7 +80,7 @@ typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
 typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
 typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
 
-typedef int ia64_mv_setup_msi_irq_t (unsigned int irq, struct pci_dev *pdev);
+typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
 typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
 
 static inline void

include/linux/irq.h

@@ -68,6 +68,7 @@ typedef	void fastcall (*irq_flow_handler_t)(unsigned int irq,
 #define IRQ_MOVE_PENDING	0x40000000	/* need to re-target IRQ destination */
 
 struct proc_dir_entry;
+struct msi_desc;
 
 /**
  * struct irq_chip - hardware interrupt chip descriptor
@@ -148,6 +149,7 @@ struct irq_chip {
 struct irq_desc {
 	irq_flow_handler_t	handle_irq;
 	struct irq_chip		*chip;
+	struct msi_desc		*msi_desc;
 	void			*handler_data;
 	void			*chip_data;
 	struct irqaction	*action;	/* IRQ action list */
@@ -373,10 +375,12 @@ extern int set_irq_chip(unsigned int irq, struct irq_chip *chip);
 extern int set_irq_data(unsigned int irq, void *data);
 extern int set_irq_chip_data(unsigned int irq, void *data);
 extern int set_irq_type(unsigned int irq, unsigned int type);
+extern int set_irq_msi(unsigned int irq, struct msi_desc *entry);
 
 #define get_irq_chip(irq)	(irq_desc[irq].chip)
 #define get_irq_chip_data(irq)	(irq_desc[irq].chip_data)
 #define get_irq_data(irq)	(irq_desc[irq].handler_data)
+#define get_irq_msi(irq)	(irq_desc[irq].msi_desc)
 
 #endif /* CONFIG_GENERIC_HARDIRQS */
 

include/linux/msi.h

@@ -7,11 +7,10 @@ struct msi_msg {
 	u32	data;		/* 16 bits of msi message data */
 };
 
-/* Heper functions */
+/* Helper functions */
 extern void mask_msi_irq(unsigned int irq);
 extern void unmask_msi_irq(unsigned int irq);
 extern void read_msi_msg(unsigned int irq, struct msi_msg *msg);
-
 extern void write_msi_msg(unsigned int irq, struct msi_msg *msg);
 
 struct msi_desc {
@@ -42,7 +41,7 @@ struct msi_desc {
 /*
  * The arch hook for setup up msi irqs
  */
-int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev);
+int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc);
 void arch_teardown_msi_irq(unsigned int irq);
 
 

include/linux/pci.h

@@ -174,6 +174,9 @@ struct pci_dev {
 	struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */
 	int rom_attr_enabled;		/* has display of the rom attribute been enabled? */
 	struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */
+#ifdef CONFIG_PCI_MSI
+	unsigned int first_msi_irq;
+#endif
 };
 
 #define pci_dev_g(n) list_entry(n, struct pci_dev, global_list)
@@ -181,6 +184,11 @@ struct pci_dev {
 #define	to_pci_dev(n) container_of(n, struct pci_dev, dev)
 #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
 
+static inline int pci_channel_offline(struct pci_dev *pdev)
+{
+	return (pdev->error_state != pci_channel_io_normal);
+}
+
 static inline struct pci_cap_saved_state *pci_find_saved_cap(
 	struct pci_dev *pci_dev,char cap)
 {
@@ -463,8 +471,7 @@ extern void pci_sort_breadthfirst(void);
 
 /* Generic PCI functions exported to card drivers */
 
-struct pci_dev *pci_find_device (unsigned int vendor, unsigned int device, const struct pci_dev *from);
-struct pci_dev *pci_find_device_reverse (unsigned int vendor, unsigned int device, const struct pci_dev *from);
+struct pci_dev __deprecated *pci_find_device (unsigned int vendor, unsigned int device, const struct pci_dev *from);
 struct pci_dev *pci_find_slot (unsigned int bus, unsigned int devfn);
 int pci_find_capability (struct pci_dev *dev, int cap);
 int pci_find_next_capability (struct pci_dev *dev, u8 pos, int cap);
@@ -533,6 +540,7 @@ void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
 int __must_check pci_assign_resource(struct pci_dev *dev, int i);
 int __must_check pci_assign_resource_fixed(struct pci_dev *dev, int i);
 void pci_restore_bars(struct pci_dev *dev);
+int pci_select_bars(struct pci_dev *dev, unsigned long flags);
 
 /* ROM control related routines */
 void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size);
@@ -561,6 +569,8 @@ int __must_check pci_request_regions(struct pci_dev *, const char *);
 void pci_release_regions(struct pci_dev *);
 int __must_check pci_request_region(struct pci_dev *, int, const char *);
 void pci_release_region(struct pci_dev *, int);
+int pci_request_selected_regions(struct pci_dev *, int, const char *);
+void pci_release_selected_regions(struct pci_dev *, int);
 
 /* drivers/pci/bus.c */
 int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
@@ -612,10 +622,6 @@ enum pci_dma_burst_strategy {
 				   strategy_parameter byte boundaries */
 };
 
-#if defined(CONFIG_ISA) || defined(CONFIG_EISA)
-extern struct pci_dev *isa_bridge;
-#endif
-
 struct msix_entry {
 	u16 	vector;	/* kernel uses to write allocated vector */
 	u16	entry;	/* driver uses to specify entry, OS writes */
@@ -623,7 +629,6 @@ struct msix_entry {
 
 
 #ifndef CONFIG_PCI_MSI
-static inline void pci_scan_msi_device(struct pci_dev *dev) {}
 static inline int pci_enable_msi(struct pci_dev *dev) {return -1;}
 static inline void pci_disable_msi(struct pci_dev *dev) {}
 static inline int pci_enable_msix(struct pci_dev* dev,
@@ -631,7 +636,6 @@ static inline int pci_enable_msix(struct pci_dev* dev,
 static inline void pci_disable_msix(struct pci_dev *dev) {}
 static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev) {}
 #else
-extern void pci_scan_msi_device(struct pci_dev *dev);
 extern int pci_enable_msi(struct pci_dev *dev);
 extern void pci_disable_msi(struct pci_dev *dev);
 extern int pci_enable_msix(struct pci_dev* dev,
@@ -723,8 +727,6 @@ static inline int pci_set_power_state(struct pci_dev *dev, pci_power_t state) {
 static inline pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) { return PCI_D0; }
 static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) { return 0; }
 
-#define	isa_bridge	((struct pci_dev *)NULL)
-
 #define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0)
 
 static inline void pci_block_user_cfg_access(struct pci_dev *dev) { }

kernel/irq/chip.c

@@ -39,6 +39,7 @@ void dynamic_irq_init(unsigned int irq)
 	desc->chip = &no_irq_chip;
 	desc->handle_irq = handle_bad_irq;
 	desc->depth = 1;
+	desc->msi_desc = NULL;
 	desc->handler_data = NULL;
 	desc->chip_data = NULL;
 	desc->action = NULL;
@@ -74,6 +75,9 @@ void dynamic_irq_cleanup(unsigned int irq)
 		WARN_ON(1);
 		return;
 	}
+	desc->msi_desc = NULL;
+	desc->handler_data = NULL;
+	desc->chip_data = NULL;
 	desc->handle_irq = handle_bad_irq;
 	desc->chip = &no_irq_chip;
 	spin_unlock_irqrestore(&desc->lock, flags);
@@ -161,6 +165,30 @@ int set_irq_data(unsigned int irq, void *data)
 }
 EXPORT_SYMBOL(set_irq_data);
 
+/**
+ *	set_irq_data - set irq type data for an irq
+ *	@irq:	Interrupt number
+ *	@data:	Pointer to interrupt specific data
+ *
+ *	Set the hardware irq controller data for an irq
+ */
+int set_irq_msi(unsigned int irq, struct msi_desc *entry)
+{
+	struct irq_desc *desc;
+	unsigned long flags;
+
+	if (irq >= NR_IRQS) {
+		printk(KERN_ERR
+		       "Trying to install msi data for IRQ%d\n", irq);
+		return -EINVAL;
+	}
+	desc = irq_desc + irq;
+	spin_lock_irqsave(&desc->lock, flags);
+	desc->msi_desc = entry;
+	spin_unlock_irqrestore(&desc->lock, flags);
+	return 0;
+}
+
 /**
  *	set_irq_chip_data - set irq chip data for an irq
  *	@irq:	Interrupt number