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

drivers/pci/probe.c

@@ -374,8 +374,11 @@ struct pci_bus * __devinit pci_add_new_bus(struct pci_bus *parent, struct pci_de
 	struct pci_bus *child;
 
 	child = pci_alloc_child_bus(parent, dev, busnr);
-	if (child)
+	if (child) {
+		spin_lock(&pci_bus_lock);
 		list_add_tail(&child->node, &parent->children);
+		spin_unlock(&pci_bus_lock);
+	}
 	return child;
 }
 
@@ -411,7 +414,7 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max
 {
 	struct pci_bus *child;
 	int is_cardbus = (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS);
-	u32 buses;
+	u32 buses, i;
 	u16 bctl;
 
 	pci_read_config_dword(dev, PCI_PRIMARY_BUS, &buses);
@@ -447,7 +450,7 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max
 			return max;
 		}
 
-		child = pci_alloc_child_bus(bus, dev, busnr);
+		child = pci_add_new_bus(bus, dev, busnr);
 		if (!child)
 			return max;
 		child->primary = buses & 0xFF;
@@ -470,7 +473,11 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max
 		/* Clear errors */
 		pci_write_config_word(dev, PCI_STATUS, 0xffff);
 
-		child = pci_alloc_child_bus(bus, dev, ++max);
+		/* Prevent assigning a bus number that already exists.
+		 * This can happen when a bridge is hot-plugged */
+		if (pci_find_bus(pci_domain_nr(bus), max+1))
+			return max;
+		child = pci_add_new_bus(bus, dev, ++max);
 		buses = (buses & 0xff000000)
 		      | ((unsigned int)(child->primary)     <<  0)
 		      | ((unsigned int)(child->secondary)   <<  8)
@@ -501,7 +508,11 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max
 			 * as cards with a PCI-to-PCI bridge can be
 			 * inserted later.
 			 */
-			max += CARDBUS_RESERVE_BUSNR;
+			for (i=0; i<CARDBUS_RESERVE_BUSNR; i++)
+				if (pci_find_bus(pci_domain_nr(bus),
+							max+i+1))
+					break;
+			max += i;
 		}
 		/*
 		 * Set the subordinate bus number to its real value.
@@ -757,7 +768,9 @@ pci_scan_single_device(struct pci_bus *bus, int devfn)
 	 * and the bus list for fixup functions, etc.
 	 */
 	INIT_LIST_HEAD(&dev->global_list);
+	spin_lock(&pci_bus_lock);
 	list_add_tail(&dev->bus_list, &bus->devices);
+	spin_unlock(&pci_bus_lock);
 
 	return dev;
 }
@@ -878,7 +891,9 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, int bus,
 		pr_debug("PCI: Bus %04x:%02x already known\n", pci_domain_nr(b), bus);
 		goto err_out;
 	}
+	spin_lock(&pci_bus_lock);
 	list_add_tail(&b->node, &pci_root_buses);
+	spin_unlock(&pci_bus_lock);
 
 	memset(dev, 0, sizeof(*dev));
 	dev->parent = parent;
@@ -911,8 +926,6 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, int bus,
 
 	b->subordinate = pci_scan_child_bus(b);
 
-	pci_bus_add_devices(b);
-
 	return b;
 
 sys_create_link_err:
@@ -922,7 +935,9 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, int bus,
 class_dev_reg_err:
 	device_unregister(dev);
 dev_reg_err:
+	spin_lock(&pci_bus_lock);
 	list_del(&b->node);
+	spin_unlock(&pci_bus_lock);
 err_out:
 	kfree(dev);
 	kfree(b);

drivers/pci/proc.c

@@ -355,14 +355,20 @@ static int show_device(struct seq_file *m, void *v)
 			dev->device,
 			dev->irq);
 	/* Here should be 7 and not PCI_NUM_RESOURCES as we need to preserve compatibility */
-	for(i=0; i<7; i++)
+	for (i=0; i<7; i++) {
+		u64 start, end;
+		pci_resource_to_user(dev, i, &dev->resource[i], &start, &end);
 		seq_printf(m, LONG_FORMAT,
-			dev->resource[i].start |
+			((unsigned long)start) |
 			(dev->resource[i].flags & PCI_REGION_FLAG_MASK));
-	for(i=0; i<7; i++)
+	}
+	for (i=0; i<7; i++) {
+		u64 start, end;
+		pci_resource_to_user(dev, i, &dev->resource[i], &start, &end);
 		seq_printf(m, LONG_FORMAT,
 			dev->resource[i].start < dev->resource[i].end ?
-			dev->resource[i].end - dev->resource[i].start + 1 : 0);
+			(unsigned long)(end - start) + 1 : 0);
+	}
 	seq_putc(m, '\t');
 	if (drv)
 		seq_printf(m, "%s", drv->name);

drivers/pci/remove.c

@@ -18,17 +18,21 @@ static void pci_free_resources(struct pci_dev *dev)
 
 static void pci_destroy_dev(struct pci_dev *dev)
 {
-	pci_proc_detach_device(dev);
-	pci_remove_sysfs_dev_files(dev);
-	device_unregister(&dev->dev);
+	if (!list_empty(&dev->global_list)) {
+		pci_proc_detach_device(dev);
+		pci_remove_sysfs_dev_files(dev);
+		device_unregister(&dev->dev);
+		spin_lock(&pci_bus_lock);
+		list_del(&dev->global_list);
+		dev->global_list.next = dev->global_list.prev = NULL;
+		spin_unlock(&pci_bus_lock);
+	}
 
 	/* Remove the device from the device lists, and prevent any further
 	 * list accesses from this device */
 	spin_lock(&pci_bus_lock);
 	list_del(&dev->bus_list);
-	list_del(&dev->global_list);
 	dev->bus_list.next = dev->bus_list.prev = NULL;
-	dev->global_list.next = dev->global_list.prev = NULL;
 	spin_unlock(&pci_bus_lock);
 
 	pci_free_resources(dev);

drivers/pci/setup-bus.c

@@ -72,7 +72,10 @@ pbus_assign_resources_sorted(struct pci_bus *bus)
 	for (list = head.next; list;) {
 		res = list->res;
 		idx = res - &list->dev->resource[0];
-		pci_assign_resource(list->dev, idx);
+		if (pci_assign_resource(list->dev, idx)) {
+			res->start = 0;
+			res->flags = 0;
+		}
 		tmp = list;
 		list = list->next;
 		kfree(tmp);

drivers/scsi/3w-9xxx.c

@@ -1916,9 +1916,9 @@ static void __twa_shutdown(TW_Device_Extension *tw_dev)
 } /* End __twa_shutdown() */
 
 /* Wrapper for __twa_shutdown */
-static void twa_shutdown(struct device *dev)
+static void twa_shutdown(struct pci_dev *pdev)
 {
-	struct Scsi_Host *host = pci_get_drvdata(to_pci_dev(dev));
+	struct Scsi_Host *host = pci_get_drvdata(pdev);
 	TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
 
 	__twa_shutdown(tw_dev);
@@ -2140,9 +2140,7 @@ static struct pci_driver twa_driver = {
 	.id_table	= twa_pci_tbl,
 	.probe		= twa_probe,
 	.remove		= twa_remove,
-	.driver		= {
-		.shutdown = twa_shutdown
-	}
+	.shutdown	= twa_shutdown
 };
 
 /* This function is called on driver initialization */

drivers/scsi/3w-xxxx.c

@@ -2264,9 +2264,9 @@ static void __tw_shutdown(TW_Device_Extension *tw_dev)
 } /* End __tw_shutdown() */
 
 /* Wrapper for __tw_shutdown */
-static void tw_shutdown(struct device *dev)
+static void tw_shutdown(struct pci_dev *pdev)
 {
-	struct Scsi_Host *host = pci_get_drvdata(to_pci_dev(dev));
+	struct Scsi_Host *host = pci_get_drvdata(pdev);
 	TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
 
 	__tw_shutdown(tw_dev);
@@ -2451,9 +2451,7 @@ static struct pci_driver tw_driver = {
 	.id_table	= tw_pci_tbl,
 	.probe		= tw_probe,
 	.remove		= tw_remove,
-	.driver		= {
-		.shutdown = tw_shutdown
-	}
+	.shutdown	= tw_shutdown,
 };
 
 /* This function is called on driver initialization */

drivers/scsi/ipr.c

@@ -6012,7 +6012,7 @@ static int __devinit ipr_probe(struct pci_dev *pdev,
 
 /**
  * ipr_shutdown - Shutdown handler.
- * @dev:	device struct
+ * @pdev:	pci device struct
  *
  * This function is invoked upon system shutdown/reboot. It will issue
  * an adapter shutdown to the adapter to flush the write cache.
@@ -6020,9 +6020,9 @@ static int __devinit ipr_probe(struct pci_dev *pdev,
  * Return value:
  * 	none
  **/
-static void ipr_shutdown(struct device *dev)
+static void ipr_shutdown(struct pci_dev *pdev)
 {
-	struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(to_pci_dev(dev));
+	struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
 	unsigned long lock_flags = 0;
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
@@ -6068,9 +6068,7 @@ static struct pci_driver ipr_driver = {
 	.id_table = ipr_pci_table,
 	.probe = ipr_probe,
 	.remove = ipr_remove,
-	.driver = {
-		.shutdown = ipr_shutdown,
-	},
+	.shutdown = ipr_shutdown,
 };
 
 /**

drivers/scsi/megaraid.c

@@ -5036,9 +5036,9 @@ megaraid_remove_one(struct pci_dev *pdev)
 }
 
 static void
-megaraid_shutdown(struct device *dev)
+megaraid_shutdown(struct pci_dev *pdev)
 {
-	struct Scsi_Host *host = pci_get_drvdata(to_pci_dev(dev));
+	struct Scsi_Host *host = pci_get_drvdata(pdev);
 	adapter_t *adapter = (adapter_t *)host->hostdata;
 
 	__megaraid_shutdown(adapter);
@@ -5070,9 +5070,7 @@ static struct pci_driver megaraid_pci_driver = {
 	.id_table	= megaraid_pci_tbl,
 	.probe		= megaraid_probe_one,
 	.remove		= __devexit_p(megaraid_remove_one),
-	.driver		= {
-		.shutdown = megaraid_shutdown,
-	},
+	.shutdown	= megaraid_shutdown,
 };
 
 static int __init megaraid_init(void)

include/acpi/acpi_bus.h

@@ -108,6 +108,21 @@ typedef int (*acpi_op_unbind)	(struct acpi_device *device);
 typedef int (*acpi_op_match)	(struct acpi_device *device,
 				 struct acpi_driver *driver);
 
+struct acpi_bus_ops {
+	u32 			acpi_op_add:1;
+	u32			acpi_op_remove:1;
+	u32			acpi_op_lock:1;
+	u32			acpi_op_start:1;
+	u32			acpi_op_stop:1;
+	u32			acpi_op_suspend:1;
+	u32			acpi_op_resume:1;
+	u32			acpi_op_scan:1;
+	u32			acpi_op_bind:1;
+	u32			acpi_op_unbind:1;
+	u32			acpi_op_match:1;
+	u32			reserved:21;
+};
+
 struct acpi_device_ops {
 	acpi_op_add		add;
 	acpi_op_remove		remove;
@@ -327,9 +342,9 @@ int acpi_bus_generate_event (struct acpi_device *device, u8 type, int data);
 int acpi_bus_receive_event (struct acpi_bus_event *event);
 int acpi_bus_register_driver (struct acpi_driver *driver);
 int acpi_bus_unregister_driver (struct acpi_driver *driver);
-int acpi_bus_scan (struct acpi_device *start);
 int acpi_bus_add (struct acpi_device **child, struct acpi_device *parent,
 		acpi_handle handle, int type);
+int acpi_bus_start (struct acpi_device *device);
 
 
 int acpi_match_ids (struct acpi_device	*device, char	*ids);

include/acpi/acpi_drivers.h

@@ -68,6 +68,7 @@ void acpi_pci_irq_del_prt (int segment, int bus);
 
 struct pci_bus;
 
+acpi_status acpi_get_pci_id (acpi_handle handle, struct acpi_pci_id *id);
 int acpi_pci_bind (struct acpi_device *device);
 int acpi_pci_unbind (struct acpi_device *device);
 int acpi_pci_bind_root (struct acpi_device *device, struct acpi_pci_id *id, struct pci_bus *bus);

include/asm-alpha/pci.h

@@ -223,6 +223,25 @@ pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr,
 	/* Nothing to do. */
 }
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	unsigned long cacheline_size;
+	u8 byte;
+
+	pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+	if (byte == 0)
+		cacheline_size = 1024;
+	else
+		cacheline_size = (int) byte * 4;
+
+	*strat = PCI_DMA_BURST_BOUNDARY;
+	*strategy_parameter = cacheline_size;
+}
+#endif
+
 /* TODO: integrate with include/asm-generic/pci.h ? */
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {

include/asm-arm/pci.h

@@ -42,6 +42,16 @@ static inline void pcibios_penalize_isa_irq(int irq)
 #define pci_unmap_len(PTR, LEN_NAME)		((PTR)->LEN_NAME)
 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)	(((PTR)->LEN_NAME) = (VAL))
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	*strat = PCI_DMA_BURST_INFINITY;
+	*strategy_parameter = ~0UL;
+}
+#endif
+
 #define HAVE_PCI_MMAP
 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
                                enum pci_mmap_state mmap_state, int write_combine);

include/asm-frv/pci.h

@@ -57,6 +57,16 @@ extern void pci_free_consistent(struct pci_dev *hwdev, size_t size,
  */
 #define PCI_DMA_BUS_IS_PHYS	(1)
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	*strat = PCI_DMA_BURST_INFINITY;
+	*strategy_parameter = ~0UL;
+}
+#endif
+
 /*
  *	These are pretty much arbitary with the CoMEM implementation.
  *	We have the whole address space to ourselves.

include/asm-i386/pci.h

@@ -99,6 +99,16 @@ static inline void pcibios_add_platform_entries(struct pci_dev *dev)
 {
 }
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	*strat = PCI_DMA_BURST_INFINITY;
+	*strategy_parameter = ~0UL;
+}
+#endif
+
 #endif /* __KERNEL__ */
 
 /* implement the pci_ DMA API in terms of the generic device dma_ one */

include/asm-ia64/iosapic.h

@@ -71,8 +71,11 @@ static inline void iosapic_eoi(char __iomem *iosapic, u32 vector)
 }
 
 extern void __init iosapic_system_init (int pcat_compat);
-extern void __init iosapic_init (unsigned long address,
+extern int __devinit iosapic_init (unsigned long address,
 				    unsigned int gsi_base);
+#ifdef CONFIG_HOTPLUG
+extern int iosapic_remove (unsigned int gsi_base);
+#endif /* CONFIG_HOTPLUG */
 extern int gsi_to_vector (unsigned int gsi);
 extern int gsi_to_irq (unsigned int gsi);
 extern void iosapic_enable_intr (unsigned int vector);
@@ -94,11 +97,14 @@ extern unsigned int iosapic_version (char __iomem *addr);
 
 extern void iosapic_pci_fixup (int);
 #ifdef CONFIG_NUMA
-extern void __init map_iosapic_to_node (unsigned int, int);
+extern void __devinit map_iosapic_to_node (unsigned int, int);
 #endif
 #else
 #define iosapic_system_init(pcat_compat)			do { } while (0)
-#define iosapic_init(address,gsi_base)				do { } while (0)
+#define iosapic_init(address,gsi_base)				(-EINVAL)
+#ifdef CONFIG_HOTPLUG
+#define iosapic_remove(gsi_base)				(-ENODEV)
+#endif /* CONFIG_HOTPLUG */
 #define iosapic_register_intr(gsi,polarity,trigger)		(gsi)
 #define iosapic_unregister_intr(irq)				do { } while (0)
 #define iosapic_override_isa_irq(isa_irq,gsi,polarity,trigger)	do { } while (0)

include/asm-ia64/pci.h

@@ -82,6 +82,25 @@ extern int pcibios_prep_mwi (struct pci_dev *);
 #define sg_dma_len(sg)		((sg)->dma_length)
 #define sg_dma_address(sg)	((sg)->dma_address)
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	unsigned long cacheline_size;
+	u8 byte;
+
+	pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+	if (byte == 0)
+		cacheline_size = 1024;
+	else
+		cacheline_size = (int) byte * 4;
+
+	*strat = PCI_DMA_BURST_MULTIPLE;
+	*strategy_parameter = cacheline_size;
+}
+#endif
+
 #define HAVE_PCI_MMAP
 extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
 				enum pci_mmap_state mmap_state, int write_combine);

include/asm-mips/pci.h

@@ -130,6 +130,16 @@ extern void pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev,
 extern void pci_dac_dma_sync_single_for_device(struct pci_dev *pdev,
 	dma64_addr_t dma_addr, size_t len, int direction);
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	*strat = PCI_DMA_BURST_INFINITY;
+	*strategy_parameter = ~0UL;
+}
+#endif
+
 extern void pcibios_resource_to_bus(struct pci_dev *dev,
 	struct pci_bus_region *region, struct resource *res);
 

include/asm-parisc/pci.h

@@ -230,6 +230,25 @@ extern inline void pcibios_register_hba(struct pci_hba_data *x)
 /* export the pci_ DMA API in terms of the dma_ one */
 #include <asm-generic/pci-dma-compat.h>
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	unsigned long cacheline_size;
+	u8 byte;
+
+	pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+	if (byte == 0)
+		cacheline_size = 1024;
+	else
+		cacheline_size = (int) byte * 4;
+
+	*strat = PCI_DMA_BURST_MULTIPLE;
+	*strategy_parameter = cacheline_size;
+}
+#endif
+
 extern void
 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
 			 struct resource *res);

include/asm-ppc/pci.h

@@ -69,6 +69,16 @@ extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr);
 #define pci_unmap_len(PTR, LEN_NAME)		(0)
 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)	do { } while (0)
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	*strat = PCI_DMA_BURST_INFINITY;
+	*strategy_parameter = ~0UL;
+}
+#endif
+
 /*
  * At present there are very few 32-bit PPC machines that can have
  * memory above the 4GB point, and we don't support that.
@@ -103,6 +113,12 @@ extern pgprot_t	pci_phys_mem_access_prot(struct file *file,
 					 unsigned long size,
 					 pgprot_t prot);
 
+#define HAVE_ARCH_PCI_RESOURCE_TO_USER
+extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
+				 const struct resource *rsrc,
+				 u64 *start, u64 *end);
+
+
 #endif	/* __KERNEL__ */
 
 #endif /* __PPC_PCI_H */

include/asm-ppc64/pci.h

@@ -78,6 +78,25 @@ static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask)
 	return 0;
 }
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+					enum pci_dma_burst_strategy *strat,
+					unsigned long *strategy_parameter)
+{
+	unsigned long cacheline_size;
+	u8 byte;
+
+	pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+	if (byte == 0)
+		cacheline_size = 1024;
+	else
+		cacheline_size = (int) byte * 4;
+
+	*strat = PCI_DMA_BURST_MULTIPLE;
+	*strategy_parameter = cacheline_size;
+}
+#endif
+
 extern int pci_domain_nr(struct pci_bus *bus);
 
 /* Decide whether to display the domain number in /proc */
@@ -136,6 +155,13 @@ extern pgprot_t	pci_phys_mem_access_prot(struct file *file,
 					 unsigned long size,
 					 pgprot_t prot);
 
+#ifdef CONFIG_PPC_MULTIPLATFORM
+#define HAVE_ARCH_PCI_RESOURCE_TO_USER
+extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
+				 const struct resource *rsrc,
+				 u64 *start, u64 *end);
+#endif /* CONFIG_PPC_MULTIPLATFORM */
+
 
 #endif	/* __KERNEL__ */