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

1 files changed, 55 insertions, 105 deletions

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 463a5a9d583d..8b505bd925aa 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -9,6 +9,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/cpumask.h>
+#include <linux/aspm.h>
 #include "pci.h"
 
 #define CARDBUS_LATENCY_TIMER	176	/* secondary latency timer */
@@ -53,7 +54,7 @@ static void pci_create_legacy_files(struct pci_bus *b)
 		b->legacy_io->attr.mode = S_IRUSR | S_IWUSR;
 		b->legacy_io->read = pci_read_legacy_io;
 		b->legacy_io->write = pci_write_legacy_io;
-		class_device_create_bin_file(&b->class_dev, b->legacy_io);
+		device_create_bin_file(&b->dev, b->legacy_io);
 
 		/* Allocated above after the legacy_io struct */
 		b->legacy_mem = b->legacy_io + 1;
@@ -61,15 +62,15 @@ static void pci_create_legacy_files(struct pci_bus *b)
 		b->legacy_mem->size = 1024*1024;
 		b->legacy_mem->attr.mode = S_IRUSR | S_IWUSR;
 		b->legacy_mem->mmap = pci_mmap_legacy_mem;
-		class_device_create_bin_file(&b->class_dev, b->legacy_mem);
+		device_create_bin_file(&b->dev, b->legacy_mem);
 	}
 }
 
 void pci_remove_legacy_files(struct pci_bus *b)
 {
 	if (b->legacy_io) {
-		class_device_remove_bin_file(&b->class_dev, b->legacy_io);
-		class_device_remove_bin_file(&b->class_dev, b->legacy_mem);
+		device_remove_bin_file(&b->dev, b->legacy_io);
+		device_remove_bin_file(&b->dev, b->legacy_mem);
 		kfree(b->legacy_io); /* both are allocated here */
 	}
 }
@@ -81,26 +82,27 @@ void pci_remove_legacy_files(struct pci_bus *bus) { return; }
 /*
  * PCI Bus Class Devices
  */
-static ssize_t pci_bus_show_cpuaffinity(struct class_device *class_dev,
+static ssize_t pci_bus_show_cpuaffinity(struct device *dev,
+					struct device_attribute *attr,
 					char *buf)
 {
 	int ret;
 	cpumask_t cpumask;
 
-	cpumask = pcibus_to_cpumask(to_pci_bus(class_dev));
+	cpumask = pcibus_to_cpumask(to_pci_bus(dev));
 	ret = cpumask_scnprintf(buf, PAGE_SIZE, cpumask);
 	if (ret < PAGE_SIZE)
 		buf[ret++] = '\n';
 	return ret;
 }
-CLASS_DEVICE_ATTR(cpuaffinity, S_IRUGO, pci_bus_show_cpuaffinity, NULL);
+DEVICE_ATTR(cpuaffinity, S_IRUGO, pci_bus_show_cpuaffinity, NULL);
 
 /*
  * PCI Bus Class
  */
-static void release_pcibus_dev(struct class_device *class_dev)
+static void release_pcibus_dev(struct device *dev)
 {
-	struct pci_bus *pci_bus = to_pci_bus(class_dev);
+	struct pci_bus *pci_bus = to_pci_bus(dev);
 
 	if (pci_bus->bridge)
 		put_device(pci_bus->bridge);
@@ -109,7 +111,7 @@ static void release_pcibus_dev(struct class_device *class_dev)
 
 static struct class pcibus_class = {
 	.name		= "pci_bus",
-	.release	= &release_pcibus_dev,
+	.dev_release	= &release_pcibus_dev,
 };
 
 static int __init pcibus_class_init(void)
@@ -276,7 +278,8 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
 			sz = pci_size(l, sz, (u32)PCI_ROM_ADDRESS_MASK);
 			if (sz) {
 				res->flags = (l & IORESOURCE_ROM_ENABLE) |
-				  IORESOURCE_MEM | IORESOURCE_READONLY;
+				  IORESOURCE_MEM | IORESOURCE_PREFETCH |
+				  IORESOURCE_READONLY | IORESOURCE_CACHEABLE;
 				res->start = l & PCI_ROM_ADDRESS_MASK;
 				res->end = res->start + (unsigned long) sz;
 			}
@@ -391,7 +394,6 @@ pci_alloc_child_bus(struct pci_bus *parent, struct pci_dev *bridge, int busnr)
 {
 	struct pci_bus *child;
 	int i;
-	int retval;
 
 	/*
 	 * Allocate a new bus, and inherit stuff from the parent..
@@ -407,15 +409,12 @@ pci_alloc_child_bus(struct pci_bus *parent, struct pci_dev *bridge, int busnr)
 	child->bus_flags = parent->bus_flags;
 	child->bridge = get_device(&bridge->dev);
 
-	child->class_dev.class = &pcibus_class;
-	sprintf(child->class_dev.class_id, "%04x:%02x", pci_domain_nr(child), busnr);
-	retval = class_device_register(&child->class_dev);
-	if (retval)
-		goto error_register;
-	retval = class_device_create_file(&child->class_dev,
-					  &class_device_attr_cpuaffinity);
-	if (retval)
-		goto error_file_create;
+	/* initialize some portions of the bus device, but don't register it
+	 * now as the parent is not properly set up yet.  This device will get
+	 * registered later in pci_bus_add_devices()
+	 */
+	child->dev.class = &pcibus_class;
+	sprintf(child->dev.bus_id, "%04x:%02x", pci_domain_nr(child), busnr);
 
 	/*
 	 * Set up the primary, secondary and subordinate
@@ -433,12 +432,6 @@ pci_alloc_child_bus(struct pci_bus *parent, struct pci_dev *bridge, int busnr)
 	bridge->subordinate = child;
 
 	return child;
-
-error_file_create:
-	class_device_unregister(&child->class_dev);
-error_register:
-	kfree(child);
-	return NULL;
 }
 
 struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr)
@@ -454,22 +447,6 @@ struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int
 	return child;
 }
 
-static void pci_enable_crs(struct pci_dev *dev)
-{
-	u16 cap, rpctl;
-	int rpcap = pci_find_capability(dev, PCI_CAP_ID_EXP);
-	if (!rpcap)
-		return;
-
-	pci_read_config_word(dev, rpcap + PCI_CAP_FLAGS, &cap);
-	if (((cap & PCI_EXP_FLAGS_TYPE) >> 4) != PCI_EXP_TYPE_ROOT_PORT)
-		return;
-
-	pci_read_config_word(dev, rpcap + PCI_EXP_RTCTL, &rpctl);
-	rpctl |= PCI_EXP_RTCTL_CRSSVE;
-	pci_write_config_word(dev, rpcap + PCI_EXP_RTCTL, rpctl);
-}
-
 static void pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max)
 {
 	struct pci_bus *parent = child->parent;
@@ -486,8 +463,6 @@ static void pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max)
 	}
 }
 
-unsigned int pci_scan_child_bus(struct pci_bus *bus);
-
 /*
  * If it's a bridge, configure it and scan the bus behind it.
  * For CardBus bridges, we don't scan behind as the devices will
@@ -516,8 +491,6 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL,
 			      bctl & ~PCI_BRIDGE_CTL_MASTER_ABORT);
 
-	pci_enable_crs(dev);
-
 	if ((buses & 0xffff00) && !pcibios_assign_all_busses() && !is_cardbus) {
 		unsigned int cmax, busnr;
 		/*
@@ -658,13 +631,13 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass
 		    (child->number > bus->subordinate) ||
 		    (child->number < bus->number) ||
 		    (child->subordinate < bus->number)) {
-			pr_debug("PCI: Bus #%02x (-#%02x) is %s"
+			pr_debug("PCI: Bus #%02x (-#%02x) is %s "
 				"hidden behind%s bridge #%02x (-#%02x)\n",
 				child->number, child->subordinate,
 				(bus->number > child->subordinate &&
 				 bus->subordinate < child->number) ?
-					"wholly " : " partially",
-				bus->self->transparent ? " transparent" : " ",
+					"wholly" : "partially",
+				bus->self->transparent ? " transparent" : "",
 				bus->number, bus->subordinate);
 		}
 		bus = bus->parent;
@@ -743,46 +716,22 @@ static int pci_setup_device(struct pci_dev * dev)
 		 */
 		if (class == PCI_CLASS_STORAGE_IDE) {
 			u8 progif;
-			struct pci_bus_region region;
-
 			pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
 			if ((progif & 1) == 0) {
-				struct resource resource = {
-					.start = 0x1F0,
-					.end = 0x1F7,
-					.flags = LEGACY_IO_RESOURCE,
-				};
-
-				pcibios_resource_to_bus(dev, &region, &resource);
-				dev->resource[0].start = region.start;
-				dev->resource[0].end = region.end;
-				dev->resource[0].flags = resource.flags;
-				resource.start = 0x3F6;
-				resource.end = 0x3F6;
-				resource.flags = LEGACY_IO_RESOURCE;
-				pcibios_resource_to_bus(dev, &region, &resource);
-				dev->resource[1].start = region.start;
-				dev->resource[1].end = region.end;
-				dev->resource[1].flags = resource.flags;
+				dev->resource[0].start = 0x1F0;
+				dev->resource[0].end = 0x1F7;
+				dev->resource[0].flags = LEGACY_IO_RESOURCE;
+				dev->resource[1].start = 0x3F6;
+				dev->resource[1].end = 0x3F6;
+				dev->resource[1].flags = LEGACY_IO_RESOURCE;
 			}
 			if ((progif & 4) == 0) {
-				struct resource resource = {
-					.start = 0x170,
-					.end = 0x177,
-					.flags = LEGACY_IO_RESOURCE,
-				};
-
-				pcibios_resource_to_bus(dev, &region, &resource);
-				dev->resource[2].start = region.start;
-				dev->resource[2].end = region.end;
-				dev->resource[2].flags = resource.flags;
-				resource.start = 0x376;
-				resource.end = 0x376;
-				resource.flags = LEGACY_IO_RESOURCE;
-				pcibios_resource_to_bus(dev, &region, &resource);
-				dev->resource[3].start = region.start;
-				dev->resource[3].end = region.end;
-				dev->resource[3].flags = resource.flags;
+				dev->resource[2].start = 0x170;
+				dev->resource[2].end = 0x177;
+				dev->resource[2].flags = LEGACY_IO_RESOURCE;
+				dev->resource[3].start = 0x376;
+				dev->resource[3].end = 0x376;
+				dev->resource[3].flags = LEGACY_IO_RESOURCE;
 			}
 		}
 		break;
@@ -1012,6 +961,7 @@ struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn)
 
 	return dev;
 }
+EXPORT_SYMBOL(pci_scan_single_device);
 
 /**
  * pci_scan_slot - scan a PCI slot on a bus for devices.
@@ -1052,6 +1002,10 @@ int pci_scan_slot(struct pci_bus *bus, int devfn)
 				break;
 		}
 	}
+
+	if (bus->self)
+		pcie_aspm_init_link_state(bus->self);
+
 	return nr;
 }
 
@@ -1144,32 +1098,27 @@ struct pci_bus * pci_create_bus(struct device *parent,
 		goto dev_reg_err;
 	b->bridge = get_device(dev);
 
-	b->class_dev.class = &pcibus_class;
-	sprintf(b->class_dev.class_id, "%04x:%02x", pci_domain_nr(b), bus);
-	error = class_device_register(&b->class_dev);
+	b->dev.class = &pcibus_class;
+	b->dev.parent = b->bridge;
+	sprintf(b->dev.bus_id, "%04x:%02x", pci_domain_nr(b), bus);
+	error = device_register(&b->dev);
 	if (error)
 		goto class_dev_reg_err;
-	error = class_device_create_file(&b->class_dev, &class_device_attr_cpuaffinity);
+	error = device_create_file(&b->dev, &dev_attr_cpuaffinity);
 	if (error)
-		goto class_dev_create_file_err;
+		goto dev_create_file_err;
 
 	/* Create legacy_io and legacy_mem files for this bus */
 	pci_create_legacy_files(b);
 
-	error = sysfs_create_link(&b->class_dev.kobj, &b->bridge->kobj, "bridge");
-	if (error)
-		goto sys_create_link_err;
-
 	b->number = b->secondary = bus;
 	b->resource[0] = &ioport_resource;
 	b->resource[1] = &iomem_resource;
 
 	return b;
 
-sys_create_link_err:
-	class_device_remove_file(&b->class_dev, &class_device_attr_cpuaffinity);
-class_dev_create_file_err:
-	class_device_unregister(&b->class_dev);
+dev_create_file_err:
+	device_unregister(&b->dev);
 class_dev_reg_err:
 	device_unregister(dev);
 dev_reg_err:
@@ -1181,7 +1130,6 @@ err_out:
 	kfree(b);
 	return NULL;
 }
-EXPORT_SYMBOL_GPL(pci_create_bus);
 
 struct pci_bus *pci_scan_bus_parented(struct device *parent,
 		int bus, struct pci_ops *ops, void *sysdata)
@@ -1200,7 +1148,6 @@ EXPORT_SYMBOL(pci_add_new_bus);
 EXPORT_SYMBOL(pci_do_scan_bus);
 EXPORT_SYMBOL(pci_scan_slot);
 EXPORT_SYMBOL(pci_scan_bridge);
-EXPORT_SYMBOL(pci_scan_single_device);
 EXPORT_SYMBOL_GPL(pci_scan_child_bus);
 #endif
 
@@ -1251,16 +1198,19 @@ static void __init pci_sort_breadthfirst_klist(void)
 	struct klist_node *n;
 	struct device *dev;
 	struct pci_dev *pdev;
+	struct klist *device_klist;
+
+	device_klist = bus_get_device_klist(&pci_bus_type);
 
-	spin_lock(&pci_bus_type.klist_devices.k_lock);
-	list_for_each_safe(pos, tmp, &pci_bus_type.klist_devices.k_list) {
+	spin_lock(&device_klist->k_lock);
+	list_for_each_safe(pos, tmp, &device_klist->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);
+	list_splice(&sorted_devices, &device_klist->k_list);
+	spin_unlock(&device_klist->k_lock);
 }
 
 static void __init pci_insertion_sort_devices(struct pci_dev *a, struct list_head *list)