aboutsummaryrefslogtreecommitdiff
path: root/arch/sparc64/kernel/pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc64/kernel/pci.c')
-rw-r--r--arch/sparc64/kernel/pci.c127
1 files changed, 5 insertions, 122 deletions
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index ec8bf4012c0..2ff7c32ab0c 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)