diff options
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 80 |
1 files changed, 32 insertions, 48 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 4b3011a23eff..f991359f0c36 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/pci-aspm.h> #include "pci.h" #define CARDBUS_LATENCY_TIMER 176 /* secondary latency timer */ @@ -20,18 +21,27 @@ LIST_HEAD(pci_root_buses); EXPORT_SYMBOL(pci_root_buses); -LIST_HEAD(pci_devices); + +static int find_anything(struct device *dev, void *data) +{ + return 1; +} /* * Some device drivers need know if pci is initiated. * Basically, we think pci is not initiated when there - * is no device in list of pci_devices. + * is no device to be found on the pci_bus_type. */ int no_pci_devices(void) { - return list_empty(&pci_devices); -} + struct device *dev; + int no_devices; + dev = bus_find_device(&pci_bus_type, NULL, NULL, find_anything); + no_devices = (dev == NULL); + put_device(dev); + return no_devices; +} EXPORT_SYMBOL(no_pci_devices); #ifdef HAVE_PCI_LEGACY @@ -244,7 +254,7 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) res->flags |= l & ~PCI_BASE_ADDRESS_IO_MASK; } res->end = res->start + (unsigned long) sz; - res->flags |= pci_calc_resource_flags(l); + res->flags |= pci_calc_resource_flags(l) | IORESOURCE_SIZEALIGN; if (is_64bit_memory(l)) { u32 szhi, lhi; @@ -297,7 +307,8 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) if (sz) { res->flags = (l & IORESOURCE_ROM_ENABLE) | IORESOURCE_MEM | IORESOURCE_PREFETCH | - IORESOURCE_READONLY | IORESOURCE_CACHEABLE; + IORESOURCE_READONLY | IORESOURCE_CACHEABLE | + IORESOURCE_SIZEALIGN; res->start = l & PCI_ROM_ADDRESS_MASK; res->end = res->start + (unsigned long) sz; } @@ -407,8 +418,8 @@ static struct pci_bus * pci_alloc_bus(void) return b; } -static struct pci_bus * __devinit -pci_alloc_child_bus(struct pci_bus *parent, struct pci_dev *bridge, int busnr) +static struct pci_bus *pci_alloc_child_bus(struct pci_bus *parent, + struct pci_dev *bridge, int busnr) { struct pci_bus *child; int i; @@ -641,7 +652,9 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, pci_write_config_byte(dev, PCI_SUBORDINATE_BUS, max); } - sprintf(child->name, (is_cardbus ? "PCI CardBus #%02x" : "PCI Bus #%02x"), child->number); + sprintf(child->name, + (is_cardbus ? "PCI CardBus %04x:%02x" : "PCI Bus %04x:%02x"), + pci_domain_nr(bus), child->number); /* Has only triggered on CardBus, fixup is in yenta_socket */ while (bus->parent) { @@ -801,6 +814,7 @@ static void pci_release_dev(struct device *dev) struct pci_dev *pci_dev; pci_dev = to_pci_dev(dev); + pci_vpd_release(pci_dev); kfree(pci_dev); } @@ -868,7 +882,6 @@ struct pci_dev *alloc_pci_dev(void) if (!dev) return NULL; - INIT_LIST_HEAD(&dev->global_list); INIT_LIST_HEAD(&dev->bus_list); pci_msi_init_pci_dev(dev); @@ -881,8 +894,7 @@ EXPORT_SYMBOL(alloc_pci_dev); * Read the config data for a PCI device, sanity-check it * and fill in the dev structure... */ -static struct pci_dev * __devinit -pci_scan_device(struct pci_bus *bus, int devfn) +static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn) { struct pci_dev *dev; u32 l; @@ -941,6 +953,8 @@ pci_scan_device(struct pci_bus *bus, int devfn) return NULL; } + pci_vpd_pci22_init(dev); + return dev; } @@ -965,7 +979,6 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus) * Add the device to our list of discovered devices * and the bus list for fixup functions, etc. */ - INIT_LIST_HEAD(&dev->global_list); down_write(&pci_bus_sem); list_add_tail(&dev->bus_list, &bus->devices); up_write(&pci_bus_sem); @@ -992,7 +1005,7 @@ EXPORT_SYMBOL(pci_scan_single_device); * * Scan a PCI slot on the specified PCI bus for devices, adding * discovered devices to the @bus->devices list. New devices - * will have an empty dev->global_list head. + * will not have is_added set. */ int pci_scan_slot(struct pci_bus *bus, int devfn) { @@ -1024,6 +1037,10 @@ int pci_scan_slot(struct pci_bus *bus, int devfn) break; } } + + if (bus->self) + pcie_aspm_init_link_state(bus->self); + return nr; } @@ -1194,7 +1211,7 @@ static void __init pci_insertion_sort_klist(struct pci_dev *a, struct list_head list_move_tail(&a->dev.knode_bus.n_node, list); } -static void __init pci_sort_breadthfirst_klist(void) +void __init pci_sort_breadthfirst(void) { LIST_HEAD(sorted_devices); struct list_head *pos, *tmp; @@ -1215,36 +1232,3 @@ static void __init pci_sort_breadthfirst_klist(void) 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) -{ - 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(); -} - |
