diff options
Diffstat (limited to 'arch/sparc64/kernel/pci.c')
-rw-r--r-- | arch/sparc64/kernel/pci.c | 127 |
1 files changed, 5 insertions, 122 deletions
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index ec8bf4012c0c..2ff7c32ab0ce 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -359,134 +359,17 @@ void pcibios_fixup_bus(struct pci_bus *pbus) pbus->resource[1] = &pbm->mem_space; } -int pci_claim_resource(struct pci_dev *pdev, int resource) +struct resource *pcibios_select_root(struct pci_dev *pdev, struct resource *r) { struct pci_pbm_info *pbm = pdev->bus->sysdata; - struct resource *res = &pdev->resource[resource]; - struct resource *root; - - if (!pbm) - return -EINVAL; + struct resource *root = NULL; - if (res->flags & IORESOURCE_IO) + if (r->flags & IORESOURCE_IO) root = &pbm->io_space; - else + if (r->flags & IORESOURCE_MEM) root = &pbm->mem_space; - pbm->parent->resource_adjust(pdev, res, root); - - return request_resource(root, res); -} - -/* - * Given the PCI bus a device resides on, try to - * find an acceptable resource allocation for a - * specific device resource.. - */ -static int pci_assign_bus_resource(const struct pci_bus *bus, - struct pci_dev *dev, - struct resource *res, - unsigned long size, - unsigned long min, - int resno) -{ - unsigned int type_mask; - int i; - - type_mask = IORESOURCE_IO | IORESOURCE_MEM; - for (i = 0 ; i < 4; i++) { - struct resource *r = bus->resource[i]; - if (!r) - continue; - - /* type_mask must match */ - if ((res->flags ^ r->flags) & type_mask) - continue; - - /* Ok, try it out.. */ - if (allocate_resource(r, res, size, min, -1, size, NULL, NULL) < 0) - continue; - - /* PCI config space updated by caller. */ - return 0; - } - return -EBUSY; -} - -int pci_assign_resource(struct pci_dev *pdev, int resource) -{ - struct pcidev_cookie *pcp = pdev->sysdata; - struct pci_pbm_info *pbm = pcp->pbm; - struct resource *res = &pdev->resource[resource]; - unsigned long min, size; - int err; - - if (res->flags & IORESOURCE_IO) - min = pbm->io_space.start + 0x400UL; - else - min = pbm->mem_space.start; - - size = res->end - res->start + 1; - - err = pci_assign_bus_resource(pdev->bus, pdev, res, size, min, resource); - - if (err < 0) { - printk("PCI: Failed to allocate resource %d for %s\n", - resource, pci_name(pdev)); - } else { - /* Update PCI config space. */ - pbm->parent->base_address_update(pdev, resource); - } - - return err; -} - -/* Sort resources by alignment */ -void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head) -{ - int i; - - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r; - struct resource_list *list, *tmp; - unsigned long r_align; - - r = &dev->resource[i]; - r_align = r->end - r->start; - - if (!(r->flags) || r->parent) - continue; - if (!r_align) { - printk(KERN_WARNING "PCI: Ignore bogus resource %d " - "[%lx:%lx] of %s\n", - i, r->start, r->end, pci_name(dev)); - continue; - } - r_align = (i < PCI_BRIDGE_RESOURCES) ? r_align + 1 : r->start; - for (list = head; ; list = list->next) { - unsigned long align = 0; - struct resource_list *ln = list->next; - int idx; - - if (ln) { - idx = ln->res - &ln->dev->resource[0]; - align = (idx < PCI_BRIDGE_RESOURCES) ? - ln->res->end - ln->res->start + 1 : - ln->res->start; - } - if (r_align > align) { - tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); - if (!tmp) - panic("pdev_sort_resources(): " - "kmalloc() failed!\n"); - tmp->next = ln; - tmp->res = r; - tmp->dev = dev; - list->next = tmp; - break; - } - } - } + return root; } void pcibios_update_irq(struct pci_dev *pdev, int irq) |