1 #include <linux/init.h>
7 struct pci_root_info pci_root_info[PCI_ROOT_NR];
9 void x86_pci_root_bus_res_quirks(struct pci_bus *b)
13 struct pci_root_info *info;
15 /* don't go for it if _CRS is used already */
16 if (b->resource[0] != &ioport_resource ||
17 b->resource[1] != &iomem_resource)
23 for (i = 0; i < pci_root_num; i++) {
24 if (pci_root_info[i].bus_min == b->number)
28 if (i == pci_root_num)
31 printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
34 info = &pci_root_info[i];
35 for (j = 0; j < info->res_num; j++) {
37 struct resource *root;
41 if (res->flags & IORESOURCE_IO)
42 root = &ioport_resource;
44 root = &iomem_resource;
45 insert_resource(root, res);
49 void __devinit update_res(struct pci_root_info *info, resource_size_t start,
50 resource_size_t end, unsigned long flags, int merge)
61 /* try to merge it with old one */
62 for (i = 0; i < info->res_num; i++) {
63 resource_size_t final_start, final_end;
64 resource_size_t common_start, common_end;
67 if (res->flags != flags)
70 common_start = max(res->start, start);
71 common_end = min(res->end, end);
72 if (common_start > common_end + 1)
75 final_start = min(res->start, start);
76 final_end = max(res->end, end);
78 res->start = final_start;
85 /* need to add that */
86 if (info->res_num >= RES_NUM)
89 res = &info->res[info->res_num];
90 res->name = info->name;