/*
>>>>>>> 296c66da8a02d52243f45b80521febece5ed498a
* PCI Bus Class
*/
static void release_pcibus_dev(struct device *dev)
{
struct pci_bus *pci_bus = to_pci_bus(dev);
if (pci_bus->bridge)
put_device(pci_bus->bridge);
pci_bus_remove_resources(pci_bus);
kfree(pci_bus);
}
void x86_pci_root_bus_res_quirks(struct pci_bus *b)
{
int i;
int j;
struct pci_root_info *info;
/* don't go for it if _CRS is used already */
if (b->resource[0] != &ioport_resource ||
b->resource[1] != &iomem_resource)
return;
if (!pci_root_num)
return;
for (i = 0; i < pci_root_num; i++) {
if (pci_root_info[i].bus_min == b->number)
break;
}
if (i == pci_root_num)
return;
printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
b->number);
pci_bus_remove_resources(b);
info = &pci_root_info[i];
for (j = 0; j < info->res_num; j++) {
struct resource *res;
struct resource *root;
res = &info->res[j];
pci_bus_add_resource(b, res, 0);
if (res->flags & IORESOURCE_IO)
root = &ioport_resource;
else
root = &iomem_resource;
insert_resource(root, res);
}
}
static void
get_current_resources(struct acpi_device *device, int busnum,
int domain, struct pci_bus *bus)
{
struct pci_root_info info;
size_t size;
if (pci_use_crs)
pci_bus_remove_resources(bus);
info.bridge = device;
info.bus = bus;
info.res_num = 0;
acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_resource,
&info);
if (!info.res_num)
return;
size = sizeof(*info.res) * info.res_num;
info.res = kmalloc(size, GFP_KERNEL);
if (!info.res)
goto res_alloc_fail;
info.name = kasprintf(GFP_KERNEL, "PCI Bus %04x:%02x", domain, busnum);
if (!info.name)
goto name_alloc_fail;
info.res_num = 0;
acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
&info);
add_resources(&info);
return;
name_alloc_fail:
kfree(info.res);
res_alloc_fail:
return;
}