1 #include <linux/init.h>
7 struct pci_root_info pci_root_info[PCI_ROOT_NR];
8 int found_all_numa_early;
10 void x86_pci_root_bus_res_quirks(struct pci_bus *b)
14 struct pci_root_info *info;
16 /* don't go for it if _CRS is used already */
17 if (b->resource[0] != &ioport_resource ||
18 b->resource[1] != &iomem_resource)
24 /* for amd, if only one root bus, don't need to do anything */
25 if (pci_root_num < 2 && found_all_numa_early)
28 for (i = 0; i < pci_root_num; i++) {
29 if (pci_root_info[i].bus_min == b->number)
33 if (i == pci_root_num)
36 printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
39 pci_bus_remove_resources(b);
40 info = &pci_root_info[i];
41 for (j = 0; j < info->res_num; j++) {
43 struct resource *root;
46 pci_bus_add_resource(b, res, 0);
47 if (res->flags & IORESOURCE_IO)
48 root = &ioport_resource;
50 root = &iomem_resource;
51 insert_resource(root, res);
55 void __devinit update_res(struct pci_root_info *info, size_t start,
56 size_t end, unsigned long flags, int merge)
67 /* try to merge it with old one */
68 for (i = 0; i < info->res_num; i++) {
69 size_t final_start, final_end;
70 size_t common_start, common_end;
73 if (res->flags != flags)
76 common_start = max((size_t)res->start, start);
77 common_end = min((size_t)res->end, end);
78 if (common_start > common_end + 1)
81 final_start = min((size_t)res->start, start);
82 final_end = max((size_t)res->end, end);
84 res->start = final_start;
91 /* need to add that */
92 if (info->res_num >= RES_NUM)
95 res = &info->res[info->res_num];
96 res->name = info->name;